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Finding the Fourth Proportional to 704,187.92, 971,772.72 and 381,905.12

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Solution

The fourth proportional to 704,187.92, 971,772.72 and 381,905.12 is: 527,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,187.92 : 971,772.72 = 381,905.12 : x
  2. Step 2: Convert to fraction form
    704,187.92/971,772.72 = 381,905.12/x
  3. Step 3: Cross multiply
    704,187.92x = 971,772.72 × 381,905.12
  4. Step 4: Simplify right side
    704,187.92x = 371,124,977,244.33
  5. Step 5: Solve for x
    x = 371,124,977,244.33/704,187.92
  6. Step 6: Final answer
    x = 527,025.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.