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Finding the Fourth Proportional to 392,572.26, 587,627.73 and 270,279.32

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Solution

The fourth proportional to 392,572.26, 587,627.73 and 270,279.32 is: 404,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,572.26 : 587,627.73 = 270,279.32 : x
  2. Step 2: Convert to fraction form
    392,572.26/587,627.73 = 270,279.32/x
  3. Step 3: Cross multiply
    392,572.26x = 587,627.73 × 270,279.32
  4. Step 4: Simplify right side
    392,572.26x = 158,823,620,339.41
  5. Step 5: Solve for x
    x = 158,823,620,339.41/392,572.26
  6. Step 6: Final answer
    x = 404,571.68

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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.