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Finding the Fourth Proportional to 752.24, 1,128.51 and 232.26

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Solution

The fourth proportional to 752.24, 1,128.51 and 232.26 is: 348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.24 : 1,128.51 = 232.26 : x
  2. Step 2: Convert to fraction form
    752.24/1,128.51 = 232.26/x
  3. Step 3: Cross multiply
    752.24x = 1,128.51 × 232.26
  4. Step 4: Simplify right side
    752.24x = 262,107.73
  5. Step 5: Solve for x
    x = 262,107.73/752.24
  6. Step 6: Final answer
    x = 348.44

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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.