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Finding the Fourth Proportional to 791.52, 1,092.60 and 529.44

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Solution

The fourth proportional to 791.52, 1,092.60 and 529.44 is: 730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.52 : 1,092.60 = 529.44 : x
  2. Step 2: Convert to fraction form
    791.52/1,092.60 = 529.44/x
  3. Step 3: Cross multiply
    791.52x = 1,092.60 × 529.44
  4. Step 4: Simplify right side
    791.52x = 578,466.14
  5. Step 5: Solve for x
    x = 578,466.14/791.52
  6. Step 6: Final answer
    x = 730.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.