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Finding the Fourth Proportional to 548,762.40, 823,143.60 and 312,566.40

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Solution

The fourth proportional to 548,762.40, 823,143.60 and 312,566.40 is: 468,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,762.40 : 823,143.60 = 312,566.40 : x
  2. Step 2: Convert to fraction form
    548,762.40/823,143.60 = 312,566.40/x
  3. Step 3: Cross multiply
    548,762.40x = 823,143.60 × 312,566.40
  4. Step 4: Simplify right side
    548,762.40x = 257,287,031,735.04
  5. Step 5: Solve for x
    x = 257,287,031,735.04/548,762.40
  6. Step 6: Final answer
    x = 468,849.60

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