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Finding the Fourth Proportional to 481,171.39, 663,992.84 and 274,447.96

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Solution

The fourth proportional to 481,171.39, 663,992.84 and 274,447.96 is: 378,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,171.39 : 663,992.84 = 274,447.96 : x
  2. Step 2: Convert to fraction form
    481,171.39/663,992.84 = 274,447.96/x
  3. Step 3: Cross multiply
    481,171.39x = 663,992.84 × 274,447.96
  4. Step 4: Simplify right side
    481,171.39x = 182,231,479,418.74
  5. Step 5: Solve for x
    x = 182,231,479,418.74/481,171.39
  6. Step 6: Final answer
    x = 378,724.68

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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.