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Finding the Fourth Proportional to 253,965.60, 381,826.80 and 237,520.80

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Solution

The fourth proportional to 253,965.60, 381,826.80 and 237,520.80 is: 357,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,965.60 : 381,826.80 = 237,520.80 : x
  2. Step 2: Convert to fraction form
    253,965.60/381,826.80 = 237,520.80/x
  3. Step 3: Cross multiply
    253,965.60x = 381,826.80 × 237,520.80
  4. Step 4: Simplify right side
    253,965.60x = 90,691,806,997.44
  5. Step 5: Solve for x
    x = 90,691,806,997.44/253,965.60
  6. Step 6: Final answer
    x = 357,102.72

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1.5x scale

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.