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Finding the Fourth Proportional to 453,428.40, 680,142.60 and 154,246.80

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Solution

The fourth proportional to 453,428.40, 680,142.60 and 154,246.80 is: 231,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,428.40 : 680,142.60 = 154,246.80 : x
  2. Step 2: Convert to fraction form
    453,428.40/680,142.60 = 154,246.80/x
  3. Step 3: Cross multiply
    453,428.40x = 680,142.60 × 154,246.80
  4. Step 4: Simplify right side
    453,428.40x = 104,909,819,593.68
  5. Step 5: Solve for x
    x = 104,909,819,593.68/453,428.40
  6. Step 6: Final answer
    x = 231,370.20

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