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Finding the Fourth Proportional to 497,628.20, 744,854.70 and 392,652.20

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Solution

The fourth proportional to 497,628.20, 744,854.70 and 392,652.20 is: 587,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,628.20 : 744,854.70 = 392,652.20 : x
  2. Step 2: Convert to fraction form
    497,628.20/744,854.70 = 392,652.20/x
  3. Step 3: Cross multiply
    497,628.20x = 744,854.70 × 392,652.20
  4. Step 4: Simplify right side
    497,628.20x = 292,468,836,635.34
  5. Step 5: Solve for x
    x = 292,468,836,635.34/497,628.20
  6. Step 6: Final answer
    x = 587,725.61

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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.