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Finding the Fourth Proportional to 397,591.88, 548,691.90 and 227,858.80

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Solution

The fourth proportional to 397,591.88, 548,691.90 and 227,858.80 is: 314,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,591.88 : 548,691.90 = 227,858.80 : x
  2. Step 2: Convert to fraction form
    397,591.88/548,691.90 = 227,858.80/x
  3. Step 3: Cross multiply
    397,591.88x = 548,691.90 × 227,858.80
  4. Step 4: Simplify right side
    397,591.88x = 125,024,277,903.72
  5. Step 5: Solve for x
    x = 125,024,277,903.72/397,591.88
  6. Step 6: Final answer
    x = 314,453.80

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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.