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Finding the Fourth Proportional to 372,285.82, 558,428.76 and 260,184.94

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Solution

The fourth proportional to 372,285.82, 558,428.76 and 260,184.94 is: 390,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,285.82 : 558,428.76 = 260,184.94 : x
  2. Step 2: Convert to fraction form
    372,285.82/558,428.76 = 260,184.94/x
  3. Step 3: Cross multiply
    372,285.82x = 558,428.76 × 260,184.94
  4. Step 4: Simplify right side
    372,285.82x = 145,294,753,414.87
  5. Step 5: Solve for x
    x = 145,294,753,414.87/372,285.82
  6. Step 6: Final answer
    x = 390,277.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.