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Finding the Fourth Proportional to 591,661.20, 886,471.20 and 275,469.60

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Solution

The fourth proportional to 591,661.20, 886,471.20 and 275,469.60 is: 412,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,661.20 : 886,471.20 = 275,469.60 : x
  2. Step 2: Convert to fraction form
    591,661.20/886,471.20 = 275,469.60/x
  3. Step 3: Cross multiply
    591,661.20x = 886,471.20 × 275,469.60
  4. Step 4: Simplify right side
    591,661.20x = 244,195,866,875.52
  5. Step 5: Solve for x
    x = 244,195,866,875.52/591,661.20
  6. Step 6: Final answer
    x = 412,729.22

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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.