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Finding the Fourth Proportional to 2,789.93, 4,180.31 and 1,401.86

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Solution

The fourth proportional to 2,789.93, 4,180.31 and 1,401.86 is: 2,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.93 : 4,180.31 = 1,401.86 : x
  2. Step 2: Convert to fraction form
    2,789.93/4,180.31 = 1,401.86/x
  3. Step 3: Cross multiply
    2,789.93x = 4,180.31 × 1,401.86
  4. Step 4: Simplify right side
    2,789.93x = 5,860,202.37
  5. Step 5: Solve for x
    x = 5,860,202.37/2,789.93
  6. Step 6: Final answer
    x = 2,100.48

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