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Finding the Fourth Proportional to 474,589.60, 711,884.40 and 458,000.80

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Solution

The fourth proportional to 474,589.60, 711,884.40 and 458,000.80 is: 687,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,589.60 : 711,884.40 = 458,000.80 : x
  2. Step 2: Convert to fraction form
    474,589.60/711,884.40 = 458,000.80/x
  3. Step 3: Cross multiply
    474,589.60x = 711,884.40 × 458,000.80
  4. Step 4: Simplify right side
    474,589.60x = 326,043,624,707.52
  5. Step 5: Solve for x
    x = 326,043,624,707.52/474,589.60
  6. Step 6: Final answer
    x = 687,001.20

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