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Finding the Fourth Proportional to 574,364.90, 861,875.40 and 396,999.20

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Solution

The fourth proportional to 574,364.90, 861,875.40 and 396,999.20 is: 595,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,364.90 : 861,875.40 = 396,999.20 : x
  2. Step 2: Convert to fraction form
    574,364.90/861,875.40 = 396,999.20/x
  3. Step 3: Cross multiply
    574,364.90x = 861,875.40 × 396,999.20
  4. Step 4: Simplify right side
    574,364.90x = 342,163,844,299.68
  5. Step 5: Solve for x
    x = 342,163,844,299.68/574,364.90
  6. Step 6: Final answer
    x = 595,725.55

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