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Finding the Fourth Proportional to 382,620.77, 527,874.05 and 239,326.37

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Solution

The fourth proportional to 382,620.77, 527,874.05 and 239,326.37 is: 330,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,620.77 : 527,874.05 = 239,326.37 : x
  2. Step 2: Convert to fraction form
    382,620.77/527,874.05 = 239,326.37/x
  3. Step 3: Cross multiply
    382,620.77x = 527,874.05 × 239,326.37
  4. Step 4: Simplify right side
    382,620.77x = 126,334,179,007.07
  5. Step 5: Solve for x
    x = 126,334,179,007.07/382,620.77
  6. Step 6: Final answer
    x = 330,181.18

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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.