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Finding the Fourth Proportional to 398,426.20, 595,911.30 and 356,608.60

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Solution

The fourth proportional to 398,426.20, 595,911.30 and 356,608.60 is: 533,366.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,426.20 : 595,911.30 = 356,608.60 : x
  2. Step 2: Convert to fraction form
    398,426.20/595,911.30 = 356,608.60/x
  3. Step 3: Cross multiply
    398,426.20x = 595,911.30 × 356,608.60
  4. Step 4: Simplify right side
    398,426.20x = 212,507,094,417.18
  5. Step 5: Solve for x
    x = 212,507,094,417.18/398,426.20
  6. Step 6: Final answer
    x = 533,366.27

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