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Finding the Fourth Proportional to 956.92, 1,433.24 and 831.92

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Solution

The fourth proportional to 956.92, 1,433.24 and 831.92 is: 1,246.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.92 : 1,433.24 = 831.92 : x
  2. Step 2: Convert to fraction form
    956.92/1,433.24 = 831.92/x
  3. Step 3: Cross multiply
    956.92x = 1,433.24 × 831.92
  4. Step 4: Simplify right side
    956.92x = 1,192,341.02
  5. Step 5: Solve for x
    x = 1,192,341.02/956.92
  6. Step 6: Final answer
    x = 1,246.02

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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.