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Finding the Fourth Proportional to 478,744.09, 718,280.18 and 163,422.43

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Solution

The fourth proportional to 478,744.09, 718,280.18 and 163,422.43 is: 245,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,744.09 : 718,280.18 = 163,422.43 : x
  2. Step 2: Convert to fraction form
    478,744.09/718,280.18 = 163,422.43/x
  3. Step 3: Cross multiply
    478,744.09x = 718,280.18 × 163,422.43
  4. Step 4: Simplify right side
    478,744.09x = 117,383,092,436.44
  5. Step 5: Solve for x
    x = 117,383,092,436.44/478,744.09
  6. Step 6: Final answer
    x = 245,189.64

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