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Finding the Fourth Proportional to 392,573.26, 587,629.23 and 270,280.32

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Solution

The fourth proportional to 392,573.26, 587,629.23 and 270,280.32 is: 404,573.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,573.26 : 587,629.23 = 270,280.32 : x
  2. Step 2: Convert to fraction form
    392,573.26/587,629.23 = 270,280.32/x
  3. Step 3: Cross multiply
    392,573.26x = 587,629.23 × 270,280.32
  4. Step 4: Simplify right side
    392,573.26x = 158,824,616,325.75
  5. Step 5: Solve for x
    x = 158,824,616,325.75/392,573.26
  6. Step 6: Final answer
    x = 404,573.19

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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.