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Finding the Fourth Proportional to 497,528.20, 744,704.70 and 392,552.20

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Solution

The fourth proportional to 497,528.20, 744,704.70 and 392,552.20 is: 587,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,528.20 : 744,704.70 = 392,552.20 : x
  2. Step 2: Convert to fraction form
    497,528.20/744,704.70 = 392,552.20/x
  3. Step 3: Cross multiply
    497,528.20x = 744,704.70 × 392,552.20
  4. Step 4: Simplify right side
    497,528.20x = 292,335,468,335.34
  5. Step 5: Solve for x
    x = 292,335,468,335.34/497,528.20
  6. Step 6: Final answer
    x = 587,575.68

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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.