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Finding the Fourth Proportional to 3,288.43, 4,932.60 and 823.24

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Solution

The fourth proportional to 3,288.43, 4,932.60 and 823.24 is: 1,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.43 : 4,932.60 = 823.24 : x
  2. Step 2: Convert to fraction form
    3,288.43/4,932.60 = 823.24/x
  3. Step 3: Cross multiply
    3,288.43x = 4,932.60 × 823.24
  4. Step 4: Simplify right side
    3,288.43x = 4,060,713.62
  5. Step 5: Solve for x
    x = 4,060,713.62/3,288.43
  6. Step 6: Final answer
    x = 1,234.85

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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.