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Finding the Fourth Proportional to 381,991.52, 527,179.68 and 246,307.92

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Solution

The fourth proportional to 381,991.52, 527,179.68 and 246,307.92 is: 339,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,991.52 : 527,179.68 = 246,307.92 : x
  2. Step 2: Convert to fraction form
    381,991.52/527,179.68 = 246,307.92/x
  3. Step 3: Cross multiply
    381,991.52x = 527,179.68 × 246,307.92
  4. Step 4: Simplify right side
    381,991.52x = 129,848,530,447.07
  5. Step 5: Solve for x
    x = 129,848,530,447.07/381,991.52
  6. Step 6: Final answer
    x = 339,925.16

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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.