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Finding the Fourth Proportional to 485,037.20, 727,555.80 and 466,374.80

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Solution

The fourth proportional to 485,037.20, 727,555.80 and 466,374.80 is: 699,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,037.20 : 727,555.80 = 466,374.80 : x
  2. Step 2: Convert to fraction form
    485,037.20/727,555.80 = 466,374.80/x
  3. Step 3: Cross multiply
    485,037.20x = 727,555.80 × 466,374.80
  4. Step 4: Simplify right side
    485,037.20x = 339,313,690,713.84
  5. Step 5: Solve for x
    x = 339,313,690,713.84/485,037.20
  6. Step 6: Final answer
    x = 699,562.20

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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.