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Finding the Fourth Proportional to 2,978.92, 4,110.31 and 1,799.99

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Solution

The fourth proportional to 2,978.92, 4,110.31 and 1,799.99 is: 2,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978.92 : 4,110.31 = 1,799.99 : x
  2. Step 2: Convert to fraction form
    2,978.92/4,110.31 = 1,799.99/x
  3. Step 3: Cross multiply
    2,978.92x = 4,110.31 × 1,799.99
  4. Step 4: Simplify right side
    2,978.92x = 7,398,514.01
  5. Step 5: Solve for x
    x = 7,398,514.01/2,978.92
  6. Step 6: Final answer
    x = 2,483.63

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