Math, asked by Sujitkrgupta, 7 months ago

3. Find the value of a in the proportion : 2/5:a:3/7:4/9.

Answers

Answered by rram80817

4

Answer:

a×d=b×c is the formula for finding missing promotion number

2/5×4/9=3/7×a

8/45=3/7×a

a=56/135

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