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Finding the Fourth Proportional to 547,240.43, 820,863.39 and 247,369.92

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Solution

The fourth proportional to 547,240.43, 820,863.39 and 247,369.92 is: 371,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,240.43 : 820,863.39 = 247,369.92 : x
  2. Step 2: Convert to fraction form
    547,240.43/820,863.39 = 247,369.92/x
  3. Step 3: Cross multiply
    547,240.43x = 820,863.39 × 247,369.92
  4. Step 4: Simplify right side
    547,240.43x = 203,056,911,115.23
  5. Step 5: Solve for x
    x = 203,056,911,115.23/547,240.43
  6. Step 6: Final answer
    x = 371,056.12

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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.