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Finding the Fourth Proportional to 892,679.70, 1,339,216.38 and 293,616.66

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Solution

The fourth proportional to 892,679.70, 1,339,216.38 and 293,616.66 is: 440,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,679.70 : 1,339,216.38 = 293,616.66 : x
  2. Step 2: Convert to fraction form
    892,679.70/1,339,216.38 = 293,616.66/x
  3. Step 3: Cross multiply
    892,679.70x = 1,339,216.38 × 293,616.66
  4. Step 4: Simplify right side
    892,679.70x = 393,216,240,512.89
  5. Step 5: Solve for x
    x = 393,216,240,512.89/892,679.70
  6. Step 6: Final answer
    x = 440,489.73

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