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Finding the Fourth Proportional to 415,253.40, 621,567.90 and 326,023.80

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Solution

The fourth proportional to 415,253.40, 621,567.90 and 326,023.80 is: 488,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,253.40 : 621,567.90 = 326,023.80 : x
  2. Step 2: Convert to fraction form
    415,253.40/621,567.90 = 326,023.80/x
  3. Step 3: Cross multiply
    415,253.40x = 621,567.90 × 326,023.80
  4. Step 4: Simplify right side
    415,253.40x = 202,645,928,716.02
  5. Step 5: Solve for x
    x = 202,645,928,716.02/415,253.40
  6. Step 6: Final answer
    x = 488,005.47

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