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Finding the Fourth Proportional to 453,876.80, 680,815.20 and 313,908.80

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Solution

The fourth proportional to 453,876.80, 680,815.20 and 313,908.80 is: 470,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,876.80 : 680,815.20 = 313,908.80 : x
  2. Step 2: Convert to fraction form
    453,876.80/680,815.20 = 313,908.80/x
  3. Step 3: Cross multiply
    453,876.80x = 680,815.20 × 313,908.80
  4. Step 4: Simplify right side
    453,876.80x = 213,713,882,453.76
  5. Step 5: Solve for x
    x = 213,713,882,453.76/453,876.80
  6. Step 6: Final answer
    x = 470,863.20

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