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Finding the Third Proportional to 264 and 389.50

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Solution

The third proportional to 264 and 389.50 is: 574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    264 : 389.50 = 389.50 : x
  2. Step 2: Convert to fraction form
    264/389.50 = 389.50/x
  3. Step 3: Cross multiply
    264x = 389.50 × 389.50
  4. Step 4: Simplify right side
    264x = 151,710.25
  5. Step 5: Solve for x
    x = 151,710.25/264
  6. Step 6: Final answer
    x = 574.66

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