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Finding the Fourth Proportional to 951.92, 1,424.22 and 541.25

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Solution

The fourth proportional to 951.92, 1,424.22 and 541.25 is: 809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.92 : 1,424.22 = 541.25 : x
  2. Step 2: Convert to fraction form
    951.92/1,424.22 = 541.25/x
  3. Step 3: Cross multiply
    951.92x = 1,424.22 × 541.25
  4. Step 4: Simplify right side
    951.92x = 770,851.95
  5. Step 5: Solve for x
    x = 770,851.95/951.92
  6. Step 6: Final answer
    x = 809.79

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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.