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Add together the ratios:

4 + 2 + 1 = 7

Divide the total amount by this value:

49/7 = 7

Multiply each of the ratios by this value:

7 x 4 = 28

7 x 2 = 14

7 x 1 = 7

The answer would be:

28 : 14 : 7

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Answer:

28, 14 and 7.

Step-by-step explanation:

First work out the denominator of the fraction you multiply by:-

4 + 2 + 1 = 7  = denominator.

So for 4:-  the amount is 4/7 * 49 = 4*7 = 28.

For 2: it = 2/7 * 49 = 14.

For 1: it = 1/7 * 49 = 7.