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Finding the Fourth Proportional to 543,146.66, 814,672.13 and 243,546.83

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Solution

The fourth proportional to 543,146.66, 814,672.13 and 243,546.83 is: 365,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,146.66 : 814,672.13 = 243,546.83 : x
  2. Step 2: Convert to fraction form
    543,146.66/814,672.13 = 243,546.83/x
  3. Step 3: Cross multiply
    543,146.66x = 814,672.13 × 243,546.83
  4. Step 4: Simplify right side
    543,146.66x = 198,410,814,750.85
  5. Step 5: Solve for x
    x = 198,410,814,750.85/543,146.66
  6. Step 6: Final answer
    x = 365,298.78

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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.