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Finding the Fourth Proportional to 663,866.08, 995,945.49 and 394,239.35

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Solution

The fourth proportional to 663,866.08, 995,945.49 and 394,239.35 is: 591,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,866.08 : 995,945.49 = 394,239.35 : x
  2. Step 2: Convert to fraction form
    663,866.08/995,945.49 = 394,239.35/x
  3. Step 3: Cross multiply
    663,866.08x = 995,945.49 × 394,239.35
  4. Step 4: Simplify right side
    663,866.08x = 392,640,905,102.90
  5. Step 5: Solve for x
    x = 392,640,905,102.90/663,866.08
  6. Step 6: Final answer
    x = 591,445.95

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