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Finding the Fourth Proportional to 454,419.40, 681,629.10 and 155,237.80

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Solution

The fourth proportional to 454,419.40, 681,629.10 and 155,237.80 is: 232,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,419.40 : 681,629.10 = 155,237.80 : x
  2. Step 2: Convert to fraction form
    454,419.40/681,629.10 = 155,237.80/x
  3. Step 3: Cross multiply
    454,419.40x = 681,629.10 × 155,237.80
  4. Step 4: Simplify right side
    454,419.40x = 105,814,601,899.98
  5. Step 5: Solve for x
    x = 105,814,601,899.98/454,419.40
  6. Step 6: Final answer
    x = 232,856.70

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