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Finding the Fourth Proportional to 418,380.52, 627,374.76 and 151,955.32

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Solution

The fourth proportional to 418,380.52, 627,374.76 and 151,955.32 is: 227,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,380.52 : 627,374.76 = 151,955.32 : x
  2. Step 2: Convert to fraction form
    418,380.52/627,374.76 = 151,955.32/x
  3. Step 3: Cross multiply
    418,380.52x = 627,374.76 × 151,955.32
  4. Step 4: Simplify right side
    418,380.52x = 95,332,932,415.72
  5. Step 5: Solve for x
    x = 95,332,932,415.72/418,380.52
  6. Step 6: Final answer
    x = 227,861.79

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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.