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Finding the Third Proportional to 534 and 628.50

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Solution

The third proportional to 534 and 628.50 is: 739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    534 : 628.50 = 628.50 : x
  2. Step 2: Convert to fraction form
    534/628.50 = 628.50/x
  3. Step 3: Cross multiply
    534x = 628.50 × 628.50
  4. Step 4: Simplify right side
    534x = 395,012.25
  5. Step 5: Solve for x
    x = 395,012.25/534
  6. Step 6: Final answer
    x = 739.72

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These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.