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Finding the Fourth Proportional to 500,625.52, 690,864.06 and 271,183.48

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Solution

The fourth proportional to 500,625.52, 690,864.06 and 271,183.48 is: 374,233.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,625.52 : 690,864.06 = 271,183.48 : x
  2. Step 2: Convert to fraction form
    500,625.52/690,864.06 = 271,183.48/x
  3. Step 3: Cross multiply
    500,625.52x = 690,864.06 × 271,183.48
  4. Step 4: Simplify right side
    500,625.52x = 187,350,919,997.73
  5. Step 5: Solve for x
    x = 187,350,919,997.73/500,625.52
  6. Step 6: Final answer
    x = 374,233.66

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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.