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Finding the Fourth Proportional to 399,997.48, 552,135.42 and 230,299.24

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Solution

The fourth proportional to 399,997.48, 552,135.42 and 230,299.24 is: 317,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,997.48 : 552,135.42 = 230,299.24 : x
  2. Step 2: Convert to fraction form
    399,997.48/552,135.42 = 230,299.24/x
  3. Step 3: Cross multiply
    399,997.48x = 552,135.42 × 230,299.24
  4. Step 4: Simplify right side
    399,997.48x = 127,156,367,603.08
  5. Step 5: Solve for x
    x = 127,156,367,603.08/399,997.48
  6. Step 6: Final answer
    x = 317,892.92

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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.