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Finding the Fourth Proportional to 408,424.28, 563,542.76 and 238,625.60

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Solution

The fourth proportional to 408,424.28, 563,542.76 and 238,625.60 is: 329,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,424.28 : 563,542.76 = 238,625.60 : x
  2. Step 2: Convert to fraction form
    408,424.28/563,542.76 = 238,625.60/x
  3. Step 3: Cross multiply
    408,424.28x = 563,542.76 × 238,625.60
  4. Step 4: Simplify right side
    408,424.28x = 134,475,729,230.66
  5. Step 5: Solve for x
    x = 134,475,729,230.66/408,424.28
  6. Step 6: Final answer
    x = 329,254.98

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1.5x scale

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.