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Finding the Fourth Proportional to 488,456.52, 674,300.87 and 327,416.77

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Solution

The fourth proportional to 488,456.52, 674,300.87 and 327,416.77 is: 451,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,456.52 : 674,300.87 = 327,416.77 : x
  2. Step 2: Convert to fraction form
    488,456.52/674,300.87 = 327,416.77/x
  3. Step 3: Cross multiply
    488,456.52x = 674,300.87 × 327,416.77
  4. Step 4: Simplify right side
    488,456.52x = 220,777,412,863.59
  5. Step 5: Solve for x
    x = 220,777,412,863.59/488,456.52
  6. Step 6: Final answer
    x = 451,989.90

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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.