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Finding the Fourth Proportional to 617,351.70, 930,654.66 and 576,201.90

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Solution

The fourth proportional to 617,351.70, 930,654.66 and 576,201.90 is: 868,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,351.70 : 930,654.66 = 576,201.90 : x
  2. Step 2: Convert to fraction form
    617,351.70/930,654.66 = 576,201.90/x
  3. Step 3: Cross multiply
    617,351.70x = 930,654.66 × 576,201.90
  4. Step 4: Simplify right side
    617,351.70x = 536,244,983,335.85
  5. Step 5: Solve for x
    x = 536,244,983,335.85/617,351.70
  6. Step 6: Final answer
    x = 868,621.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.