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Finding the Fourth Proportional to 547,241.43, 820,864.89 and 247,370.92

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Solution

The fourth proportional to 547,241.43, 820,864.89 and 247,370.92 is: 371,057.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,241.43 : 820,864.89 = 247,370.92 : x
  2. Step 2: Convert to fraction form
    547,241.43/820,864.89 = 247,370.92/x
  3. Step 3: Cross multiply
    547,241.43x = 820,864.89 × 247,370.92
  4. Step 4: Simplify right side
    547,241.43x = 203,058,103,035.00
  5. Step 5: Solve for x
    x = 203,058,103,035.00/547,241.43
  6. Step 6: Final answer
    x = 371,057.62

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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.