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Finding the Fourth Proportional to 622.08, 932.61 and 231.86

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Solution

The fourth proportional to 622.08, 932.61 and 231.86 is: 347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.08 : 932.61 = 231.86 : x
  2. Step 2: Convert to fraction form
    622.08/932.61 = 231.86/x
  3. Step 3: Cross multiply
    622.08x = 932.61 × 231.86
  4. Step 4: Simplify right side
    622.08x = 216,238.16
  5. Step 5: Solve for x
    x = 216,238.16/622.08
  6. Step 6: Final answer
    x = 347.61

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