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Finding the Fourth Proportional to 325,489.80, 488,234.70 and 273,001.80

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Solution

The fourth proportional to 325,489.80, 488,234.70 and 273,001.80 is: 409,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,489.80 : 488,234.70 = 273,001.80 : x
  2. Step 2: Convert to fraction form
    325,489.80/488,234.70 = 273,001.80/x
  3. Step 3: Cross multiply
    325,489.80x = 488,234.70 × 273,001.80
  4. Step 4: Simplify right side
    325,489.80x = 133,288,951,922.46
  5. Step 5: Solve for x
    x = 133,288,951,922.46/325,489.80
  6. Step 6: Final answer
    x = 409,502.70

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1.5x scale

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.