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Finding the Fourth Proportional to 936.14, 1,292.22 and 582.12

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Solution

The fourth proportional to 936.14, 1,292.22 and 582.12 is: 803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.14 : 1,292.22 = 582.12 : x
  2. Step 2: Convert to fraction form
    936.14/1,292.22 = 582.12/x
  3. Step 3: Cross multiply
    936.14x = 1,292.22 × 582.12
  4. Step 4: Simplify right side
    936.14x = 752,227.11
  5. Step 5: Solve for x
    x = 752,227.11/936.14
  6. Step 6: Final answer
    x = 803.55

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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.