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Finding the Fourth Proportional to 408,584.25, 563,615.87 and 245,198.97

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Solution

The fourth proportional to 408,584.25, 563,615.87 and 245,198.97 is: 338,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,584.25 : 563,615.87 = 245,198.97 : x
  2. Step 2: Convert to fraction form
    408,584.25/563,615.87 = 245,198.97/x
  3. Step 3: Cross multiply
    408,584.25x = 563,615.87 × 245,198.97
  4. Step 4: Simplify right side
    408,584.25x = 138,198,028,594.57
  5. Step 5: Solve for x
    x = 138,198,028,594.57/408,584.25
  6. Step 6: Final answer
    x = 338,236.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.