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Finding the Fourth Proportional to 3,296.43, 4,944.57 and 831.27

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Solution

The fourth proportional to 3,296.43, 4,944.57 and 831.27 is: 1,246.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,296.43 : 4,944.57 = 831.27 : x
  2. Step 2: Convert to fraction form
    3,296.43/4,944.57 = 831.27/x
  3. Step 3: Cross multiply
    3,296.43x = 4,944.57 × 831.27
  4. Step 4: Simplify right side
    3,296.43x = 4,110,272.70
  5. Step 5: Solve for x
    x = 4,110,272.70/3,296.43
  6. Step 6: Final answer
    x = 1,246.89

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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.