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Finding the Fourth Proportional to 288,254.88, 397,591.68 and 197,618.96

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Solution

The fourth proportional to 288,254.88, 397,591.68 and 197,618.96 is: 272,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,254.88 : 397,591.68 = 197,618.96 : x
  2. Step 2: Convert to fraction form
    288,254.88/397,591.68 = 197,618.96/x
  3. Step 3: Cross multiply
    288,254.88x = 397,591.68 × 197,618.96
  4. Step 4: Simplify right side
    288,254.88x = 78,571,654,306.25
  5. Step 5: Solve for x
    x = 78,571,654,306.25/288,254.88
  6. Step 6: Final answer
    x = 272,577.01

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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.