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Finding the Fourth Proportional to 470,338.56, 649,078.92 and 255,478.56

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Solution

The fourth proportional to 470,338.56, 649,078.92 and 255,478.56 is: 352,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,338.56 : 649,078.92 = 255,478.56 : x
  2. Step 2: Convert to fraction form
    470,338.56/649,078.92 = 255,478.56/x
  3. Step 3: Cross multiply
    470,338.56x = 649,078.92 × 255,478.56
  4. Step 4: Simplify right side
    470,338.56x = 165,825,747,807.96
  5. Step 5: Solve for x
    x = 165,825,747,807.96/470,338.56
  6. Step 6: Final answer
    x = 352,566.77

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