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Finding the Fourth Proportional to 668,048.80, 1,002,850.80 and 402,109.60

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Solution

The fourth proportional to 668,048.80, 1,002,850.80 and 402,109.60 is: 603,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,048.80 : 1,002,850.80 = 402,109.60 : x
  2. Step 2: Convert to fraction form
    668,048.80/1,002,850.80 = 402,109.60/x
  3. Step 3: Cross multiply
    668,048.80x = 1,002,850.80 × 402,109.60
  4. Step 4: Simplify right side
    668,048.80x = 403,255,934,047.68
  5. Step 5: Solve for x
    x = 403,255,934,047.68/668,048.80
  6. Step 6: Final answer
    x = 603,632.45

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