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Finding the Fourth Proportional to 382,446.62, 527,681.86 and 239,134.94

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Solution

The fourth proportional to 382,446.62, 527,681.86 and 239,134.94 is: 329,947.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,446.62 : 527,681.86 = 239,134.94 : x
  2. Step 2: Convert to fraction form
    382,446.62/527,681.86 = 239,134.94/x
  3. Step 3: Cross multiply
    382,446.62x = 527,681.86 × 239,134.94
  4. Step 4: Simplify right side
    382,446.62x = 126,187,168,734.51
  5. Step 5: Solve for x
    x = 126,187,168,734.51/382,446.62
  6. Step 6: Final answer
    x = 329,947.14

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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.