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Finding the Third Proportional to 474 and 616.50

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Solution

The third proportional to 474 and 616.50 is: 801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    474 : 616.50 = 616.50 : x
  2. Step 2: Convert to fraction form
    474/616.50 = 616.50/x
  3. Step 3: Cross multiply
    474x = 616.50 × 616.50
  4. Step 4: Simplify right side
    474x = 380,072.25
  5. Step 5: Solve for x
    x = 380,072.25/474
  6. Step 6: Final answer
    x = 801.84

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