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Finding the Fourth Proportional to 648,375.60, 972,604.77 and 269,327.19

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Solution

The fourth proportional to 648,375.60, 972,604.77 and 269,327.19 is: 404,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,375.60 : 972,604.77 = 269,327.19 : x
  2. Step 2: Convert to fraction form
    648,375.60/972,604.77 = 269,327.19/x
  3. Step 3: Cross multiply
    648,375.60x = 972,604.77 × 269,327.19
  4. Step 4: Simplify right side
    648,375.60x = 261,948,912,321.99
  5. Step 5: Solve for x
    x = 261,948,912,321.99/648,375.60
  6. Step 6: Final answer
    x = 404,007.97

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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.