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Finding the Fourth Proportional to 415,009.15, 622,021.65 and 372,690.70

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Solution

The fourth proportional to 415,009.15, 622,021.65 and 372,690.70 is: 558,594.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,009.15 : 622,021.65 = 372,690.70 : x
  2. Step 2: Convert to fraction form
    415,009.15/622,021.65 = 372,690.70/x
  3. Step 3: Cross multiply
    415,009.15x = 622,021.65 × 372,690.70
  4. Step 4: Simplify right side
    415,009.15x = 231,821,684,153.66
  5. Step 5: Solve for x
    x = 231,821,684,153.66/415,009.15
  6. Step 6: Final answer
    x = 558,594.15

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