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Finding the Fourth Proportional to 971.52, 1,458.22 and 736.44

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Solution

The fourth proportional to 971.52, 1,458.22 and 736.44 is: 1,105.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    971.52 : 1,458.22 = 736.44 : x
  2. Step 2: Convert to fraction form
    971.52/1,458.22 = 736.44/x
  3. Step 3: Cross multiply
    971.52x = 1,458.22 × 736.44
  4. Step 4: Simplify right side
    971.52x = 1,073,891.54
  5. Step 5: Solve for x
    x = 1,073,891.54/971.52
  6. Step 6: Final answer
    x = 1,105.37

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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.