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Finding the Fourth Proportional to 453,838.80, 680,758.20 and 313,870.80

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Solution

The fourth proportional to 453,838.80, 680,758.20 and 313,870.80 is: 470,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,838.80 : 680,758.20 = 313,870.80 : x
  2. Step 2: Convert to fraction form
    453,838.80/680,758.20 = 313,870.80/x
  3. Step 3: Cross multiply
    453,838.80x = 680,758.20 × 313,870.80
  4. Step 4: Simplify right side
    453,838.80x = 213,670,120,840.56
  5. Step 5: Solve for x
    x = 213,670,120,840.56/453,838.80
  6. Step 6: Final answer
    x = 470,806.20

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