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Finding the Fourth Proportional to 351,993.47, 485,817.95 and 208,832.45

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Solution

The fourth proportional to 351,993.47, 485,817.95 and 208,832.45 is: 288,228.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,993.47 : 485,817.95 = 208,832.45 : x
  2. Step 2: Convert to fraction form
    351,993.47/485,817.95 = 208,832.45/x
  3. Step 3: Cross multiply
    351,993.47x = 485,817.95 × 208,832.45
  4. Step 4: Simplify right side
    351,993.47x = 101,454,550,845.47
  5. Step 5: Solve for x
    x = 101,454,550,845.47/351,993.47
  6. Step 6: Final answer
    x = 288,228.51

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