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Finding the Fourth Proportional to 1,244.43, 1,867.28 and 951.75

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Solution

The fourth proportional to 1,244.43, 1,867.28 and 951.75 is: 1,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.43 : 1,867.28 = 951.75 : x
  2. Step 2: Convert to fraction form
    1,244.43/1,867.28 = 951.75/x
  3. Step 3: Cross multiply
    1,244.43x = 1,867.28 × 951.75
  4. Step 4: Simplify right side
    1,244.43x = 1,777,178.98
  5. Step 5: Solve for x
    x = 1,777,178.98/1,244.43
  6. Step 6: Final answer
    x = 1,428.11

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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.