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Finding the Fourth Proportional to 455,041.80, 682,562.70 and 313,324.20

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Solution

The fourth proportional to 455,041.80, 682,562.70 and 313,324.20 is: 469,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,041.80 : 682,562.70 = 313,324.20 : x
  2. Step 2: Convert to fraction form
    455,041.80/682,562.70 = 313,324.20/x
  3. Step 3: Cross multiply
    455,041.80x = 682,562.70 × 313,324.20
  4. Step 4: Simplify right side
    455,041.80x = 213,863,411,927.34
  5. Step 5: Solve for x
    x = 213,863,411,927.34/455,041.80
  6. Step 6: Final answer
    x = 469,986.30

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