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Finding the Fourth Proportional to 394,625.06, 591,753.53 and 205,034.45

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Solution

The fourth proportional to 394,625.06, 591,753.53 and 205,034.45 is: 307,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,625.06 : 591,753.53 = 205,034.45 : x
  2. Step 2: Convert to fraction form
    394,625.06/591,753.53 = 205,034.45/x
  3. Step 3: Cross multiply
    394,625.06x = 591,753.53 × 205,034.45
  4. Step 4: Simplify right side
    394,625.06x = 121,329,861,551.08
  5. Step 5: Solve for x
    x = 121,329,861,551.08/394,625.06
  6. Step 6: Final answer
    x = 307,456.05

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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.