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Finding the Fourth Proportional to 481,263.89, 722,605.49 and 268,447.61

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Solution

The fourth proportional to 481,263.89, 722,605.49 and 268,447.61 is: 403,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,263.89 : 722,605.49 = 268,447.61 : x
  2. Step 2: Convert to fraction form
    481,263.89/722,605.49 = 268,447.61/x
  3. Step 3: Cross multiply
    481,263.89x = 722,605.49 × 268,447.61
  4. Step 4: Simplify right side
    481,263.89x = 193,981,711,808.11
  5. Step 5: Solve for x
    x = 193,981,711,808.11/481,263.89
  6. Step 6: Final answer
    x = 403,067.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.