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Finding the Fourth Proportional to 463,619.20, 695,428.80 and 416,963.20

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Solution

The fourth proportional to 463,619.20, 695,428.80 and 416,963.20 is: 625,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,619.20 : 695,428.80 = 416,963.20 : x
  2. Step 2: Convert to fraction form
    463,619.20/695,428.80 = 416,963.20/x
  3. Step 3: Cross multiply
    463,619.20x = 695,428.80 × 416,963.20
  4. Step 4: Simplify right side
    463,619.20x = 289,968,217,820.16
  5. Step 5: Solve for x
    x = 289,968,217,820.16/463,619.20
  6. Step 6: Final answer
    x = 625,444.80

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