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Finding the Fourth Proportional to 493,746.80, 740,620.20 and 455,255.60

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Solution

The fourth proportional to 493,746.80, 740,620.20 and 455,255.60 is: 682,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,746.80 : 740,620.20 = 455,255.60 : x
  2. Step 2: Convert to fraction form
    493,746.80/740,620.20 = 455,255.60/x
  3. Step 3: Cross multiply
    493,746.80x = 740,620.20 × 455,255.60
  4. Step 4: Simplify right side
    493,746.80x = 337,171,493,523.12
  5. Step 5: Solve for x
    x = 337,171,493,523.12/493,746.80
  6. Step 6: Final answer
    x = 682,883.40

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