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Finding the Fourth Proportional to 372,139.80, 558,209.70 and 357,624.60

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Solution

The fourth proportional to 372,139.80, 558,209.70 and 357,624.60 is: 536,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,139.80 : 558,209.70 = 357,624.60 : x
  2. Step 2: Convert to fraction form
    372,139.80/558,209.70 = 357,624.60/x
  3. Step 3: Cross multiply
    372,139.80x = 558,209.70 × 357,624.60
  4. Step 4: Simplify right side
    372,139.80x = 199,629,520,678.62
  5. Step 5: Solve for x
    x = 199,629,520,678.62/372,139.80
  6. Step 6: Final answer
    x = 536,436.90

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