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Finding the Fourth Proportional to 368,190.68, 551,400.24 and 209,939.36

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Solution

The fourth proportional to 368,190.68, 551,400.24 and 209,939.36 is: 314,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,190.68 : 551,400.24 = 209,939.36 : x
  2. Step 2: Convert to fraction form
    368,190.68/551,400.24 = 209,939.36/x
  3. Step 3: Cross multiply
    368,190.68x = 551,400.24 × 209,939.36
  4. Step 4: Simplify right side
    368,190.68x = 115,760,613,489.45
  5. Step 5: Solve for x
    x = 115,760,613,489.45/368,190.68
  6. Step 6: Final answer
    x = 314,403.98

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