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Finding the Fourth Proportional to 418,773.68, 578,010.31 and 237,591.66

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Solution

The fourth proportional to 418,773.68, 578,010.31 and 237,591.66 is: 327,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,773.68 : 578,010.31 = 237,591.66 : x
  2. Step 2: Convert to fraction form
    418,773.68/578,010.31 = 237,591.66/x
  3. Step 3: Cross multiply
    418,773.68x = 578,010.31 × 237,591.66
  4. Step 4: Simplify right side
    418,773.68x = 137,330,429,050.02
  5. Step 5: Solve for x
    x = 137,330,429,050.02/418,773.68
  6. Step 6: Final answer
    x = 327,934.72

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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.