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Finding the Fourth Proportional to 421,963.64, 582,309.78 and 230,977.16

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Solution

The fourth proportional to 421,963.64, 582,309.78 and 230,977.16 is: 318,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,963.64 : 582,309.78 = 230,977.16 : x
  2. Step 2: Convert to fraction form
    421,963.64/582,309.78 = 230,977.16/x
  3. Step 3: Cross multiply
    421,963.64x = 582,309.78 × 230,977.16
  4. Step 4: Simplify right side
    421,963.64x = 134,500,259,224.63
  5. Step 5: Solve for x
    x = 134,500,259,224.63/421,963.64
  6. Step 6: Final answer
    x = 318,748.46

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