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Finding the Fourth Proportional to 924,123.89, 1,386,184.89 and 347,854.79

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Solution

The fourth proportional to 924,123.89, 1,386,184.89 and 347,854.79 is: 521,781.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,123.89 : 1,386,184.89 = 347,854.79 : x
  2. Step 2: Convert to fraction form
    924,123.89/1,386,184.89 = 347,854.79/x
  3. Step 3: Cross multiply
    924,123.89x = 1,386,184.89 × 347,854.79
  4. Step 4: Simplify right side
    924,123.89x = 482,191,053,812.12
  5. Step 5: Solve for x
    x = 482,191,053,812.12/924,123.89
  6. Step 6: Final answer
    x = 521,781.83

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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.