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Finding the Fourth Proportional to 485,061.20, 727,591.80 and 466,398.80

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Solution

The fourth proportional to 485,061.20, 727,591.80 and 466,398.80 is: 699,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,061.20 : 727,591.80 = 466,398.80 : x
  2. Step 2: Convert to fraction form
    485,061.20/727,591.80 = 466,398.80/x
  3. Step 3: Cross multiply
    485,061.20x = 727,591.80 × 466,398.80
  4. Step 4: Simplify right side
    485,061.20x = 339,347,942,409.84
  5. Step 5: Solve for x
    x = 339,347,942,409.84/485,061.20
  6. Step 6: Final answer
    x = 699,598.20

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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.