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Finding the Fourth Proportional to 423,815.60, 635,723.40 and 186,906.80

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Solution

The fourth proportional to 423,815.60, 635,723.40 and 186,906.80 is: 280,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,815.60 : 635,723.40 = 186,906.80 : x
  2. Step 2: Convert to fraction form
    423,815.60/635,723.40 = 186,906.80/x
  3. Step 3: Cross multiply
    423,815.60x = 635,723.40 × 186,906.80
  4. Step 4: Simplify right side
    423,815.60x = 118,821,026,379.12
  5. Step 5: Solve for x
    x = 118,821,026,379.12/423,815.60
  6. Step 6: Final answer
    x = 280,360.20

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