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Finding the Fourth Proportional to 374,735.52, 516,989.79 and 238,745.12

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Solution

The fourth proportional to 374,735.52, 516,989.79 and 238,745.12 is: 329,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,735.52 : 516,989.79 = 238,745.12 : x
  2. Step 2: Convert to fraction form
    374,735.52/516,989.79 = 238,745.12/x
  3. Step 3: Cross multiply
    374,735.52x = 516,989.79 × 238,745.12
  4. Step 4: Simplify right side
    374,735.52x = 123,428,790,744.80
  5. Step 5: Solve for x
    x = 123,428,790,744.80/374,735.52
  6. Step 6: Final answer
    x = 329,375.74

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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.