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Finding the Fourth Proportional to 392,365.52, 541,426.96 and 220,244.04

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Solution

The fourth proportional to 392,365.52, 541,426.96 and 220,244.04 is: 303,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,365.52 : 541,426.96 = 220,244.04 : x
  2. Step 2: Convert to fraction form
    392,365.52/541,426.96 = 220,244.04/x
  3. Step 3: Cross multiply
    392,365.52x = 541,426.96 × 220,244.04
  4. Step 4: Simplify right side
    392,365.52x = 119,246,061,035.32
  5. Step 5: Solve for x
    x = 119,246,061,035.32/392,365.52
  6. Step 6: Final answer
    x = 303,915.75

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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.