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Finding the Fourth Proportional to 475,617.88, 656,335.20 and 260,753.24

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Solution

The fourth proportional to 475,617.88, 656,335.20 and 260,753.24 is: 359,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,617.88 : 656,335.20 = 260,753.24 : x
  2. Step 2: Convert to fraction form
    475,617.88/656,335.20 = 260,753.24/x
  3. Step 3: Cross multiply
    475,617.88x = 656,335.20 × 260,753.24
  4. Step 4: Simplify right side
    475,617.88x = 171,141,529,926.05
  5. Step 5: Solve for x
    x = 171,141,529,926.05/475,617.88
  6. Step 6: Final answer
    x = 359,829.89

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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.