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Finding the Fourth Proportional to 265,742.40, 398,613.60 and 254,224.20

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Solution

The fourth proportional to 265,742.40, 398,613.60 and 254,224.20 is: 381,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,742.40 : 398,613.60 = 254,224.20 : x
  2. Step 2: Convert to fraction form
    265,742.40/398,613.60 = 254,224.20/x
  3. Step 3: Cross multiply
    265,742.40x = 398,613.60 × 254,224.20
  4. Step 4: Simplify right side
    265,742.40x = 101,337,223,569.12
  5. Step 5: Solve for x
    x = 101,337,223,569.12/265,742.40
  6. Step 6: Final answer
    x = 381,336.30

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