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Finding the Fourth Proportional to 484,697.24, 727,035.42 and 129,711.20

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Solution

The fourth proportional to 484,697.24, 727,035.42 and 129,711.20 is: 194,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,697.24 : 727,035.42 = 129,711.20 : x
  2. Step 2: Convert to fraction form
    484,697.24/727,035.42 = 129,711.20/x
  3. Step 3: Cross multiply
    484,697.24x = 727,035.42 × 129,711.20
  4. Step 4: Simplify right side
    484,697.24x = 94,304,636,770.70
  5. Step 5: Solve for x
    x = 94,304,636,770.70/484,697.24
  6. Step 6: Final answer
    x = 194,564.01

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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.