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Finding the Fourth Proportional to 392,311.10, 541,250.10 and 256,423.52

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Solution

The fourth proportional to 392,311.10, 541,250.10 and 256,423.52 is: 353,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,311.10 : 541,250.10 = 256,423.52 : x
  2. Step 2: Convert to fraction form
    392,311.10/541,250.10 = 256,423.52/x
  3. Step 3: Cross multiply
    392,311.10x = 541,250.10 × 256,423.52
  4. Step 4: Simplify right side
    392,311.10x = 138,789,255,842.35
  5. Step 5: Solve for x
    x = 138,789,255,842.35/392,311.10
  6. Step 6: Final answer
    x = 353,773.46

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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.