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Finding the Fourth Proportional to 932.56, 1,396.38 and 584.44

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Solution

The fourth proportional to 932.56, 1,396.38 and 584.44 is: 875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.56 : 1,396.38 = 584.44 : x
  2. Step 2: Convert to fraction form
    932.56/1,396.38 = 584.44/x
  3. Step 3: Cross multiply
    932.56x = 1,396.38 × 584.44
  4. Step 4: Simplify right side
    932.56x = 816,100.33
  5. Step 5: Solve for x
    x = 816,100.33/932.56
  6. Step 6: Final answer
    x = 875.12

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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.