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Finding the Fourth Proportional to 484,593.89, 726,890.66 and 129,598.68

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Solution

The fourth proportional to 484,593.89, 726,890.66 and 129,598.68 is: 194,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,593.89 : 726,890.66 = 129,598.68 : x
  2. Step 2: Convert to fraction form
    484,593.89/726,890.66 = 129,598.68/x
  3. Step 3: Cross multiply
    484,593.89x = 726,890.66 × 129,598.68
  4. Step 4: Simplify right side
    484,593.89x = 94,204,072,604.17
  5. Step 5: Solve for x
    x = 94,204,072,604.17/484,593.89
  6. Step 6: Final answer
    x = 194,397.98

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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.