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Finding the Fourth Proportional to 552,297.62, 762,175.15 and 307,285.92

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Solution

The fourth proportional to 552,297.62, 762,175.15 and 307,285.92 is: 424,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,297.62 : 762,175.15 = 307,285.92 : x
  2. Step 2: Convert to fraction form
    552,297.62/762,175.15 = 307,285.92/x
  3. Step 3: Cross multiply
    552,297.62x = 762,175.15 × 307,285.92
  4. Step 4: Simplify right side
    552,297.62x = 234,205,691,400.67
  5. Step 5: Solve for x
    x = 234,205,691,400.67/552,297.62
  6. Step 6: Final answer
    x = 424,057.03

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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.