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Finding the Fourth Proportional to 508,507.97, 762,761.96 and 396,272.18

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Solution

The fourth proportional to 508,507.97, 762,761.96 and 396,272.18 is: 594,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,507.97 : 762,761.96 = 396,272.18 : x
  2. Step 2: Convert to fraction form
    508,507.97/762,761.96 = 396,272.18/x
  3. Step 3: Cross multiply
    508,507.97x = 762,761.96 × 396,272.18
  4. Step 4: Simplify right side
    508,507.97x = 302,261,338,915.10
  5. Step 5: Solve for x
    x = 302,261,338,915.10/508,507.97
  6. Step 6: Final answer
    x = 594,408.27

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.