1.

Find the value of a proportation2/5:a::3/7:4/9​

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ANSWER:

Step-by-step explanation:

2/5:a::3/7:4/9

Value of a is

= 3/7 X a = 2/5 x 4/9

= 3A/7 = 8/45

= 3a = 8/45 x 7

= 3a = 56/45

= a = 56/45 x 3

= a = 56/15



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