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Finding the Fourth Proportional to 382,620.52, 527,873.70 and 239,326.12

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Solution

The fourth proportional to 382,620.52, 527,873.70 and 239,326.12 is: 330,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,620.52 : 527,873.70 = 239,326.12 : x
  2. Step 2: Convert to fraction form
    382,620.52/527,873.70 = 239,326.12/x
  3. Step 3: Cross multiply
    382,620.52x = 527,873.70 × 239,326.12
  4. Step 4: Simplify right side
    382,620.52x = 126,333,964,471.04
  5. Step 5: Solve for x
    x = 126,333,964,471.04/382,620.52
  6. Step 6: Final answer
    x = 330,180.84

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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.