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Finding the Fourth Proportional to 738.86, 1,108.18 and 251.82

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Solution

The fourth proportional to 738.86, 1,108.18 and 251.82 is: 377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.86 : 1,108.18 = 251.82 : x
  2. Step 2: Convert to fraction form
    738.86/1,108.18 = 251.82/x
  3. Step 3: Cross multiply
    738.86x = 1,108.18 × 251.82
  4. Step 4: Simplify right side
    738.86x = 279,061.89
  5. Step 5: Solve for x
    x = 279,061.89/738.86
  6. Step 6: Final answer
    x = 377.69

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