The proportion formula is composed of 3 / 2, 2 / 1, 6 / 1 and 8 / 1

　3／2:2／1＝6／1:1／8
＝3:4＝6：8

RELATED INFORMATIONS

1. Use 0.25, 4 / 3, 8 and another number to form a proportion, which can be (three)
2. Use 1 / 8, 0.4, 8 and 1 / 2 to form a proportional formula·····
3. The ratio of 0.25, 3 / 5, 1 / 8 and 6 / 5
4. Write out the two ratios whose ratio is 0.2, and then form the formula
5. Write down the two ratios whose ratio is 1 / 2. What are their respective ratios and what are the constituent ratios? 2: 4 and 3:6 2:4 = 3:6
6. Write two ratios of 0.6 and make up the proportion. Write the proportion formula
7. Write the ratio is the ratio of 0.5______ ．
8. Write two ratios that are 3 / 8 and put them in proportion
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11. 1. Using the five numbers of 2 6 4 8 3 to set up a proportional formula, what can you set up? 2. What's the proportion of 171?
12. There are arrays {1, 2, 3, 4}, {2, 4, 6, 8}, {3, 6, 9, 12} Then the sum of the four numbers in the 100th array is______ ．
13. 4 / 3 2 / 1 6 / 1 and 2.25 make up a ratio ()
14. 1. Use 2 / 9, 3 / 5 and a number to form a proportional expression, which may be () (not innumerable)
15. Add 9, 1 / 2 and 3 to make these four numbers form a proportional expression. This number is A54 B6 C1
16. The four numbers 2, 3, 6 and 9 can form () proportional expressions
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19. The ratio is two ratios of three fourths, which make up the proportion Piece by piece
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