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Finding the Third Proportional to 346 and 485.50

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Solution

The third proportional to 346 and 485.50 is: 681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    346 : 485.50 = 485.50 : x
  2. Step 2: Convert to fraction form
    346/485.50 = 485.50/x
  3. Step 3: Cross multiply
    346x = 485.50 × 485.50
  4. Step 4: Simplify right side
    346x = 235,710.25
  5. Step 5: Solve for x
    x = 235,710.25/346
  6. Step 6: Final answer
    x = 681.24

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