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Finding the Third Proportional to 441 and 682.50

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Solution

The third proportional to 441 and 682.50 is: 1,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    441 : 682.50 = 682.50 : x
  2. Step 2: Convert to fraction form
    441/682.50 = 682.50/x
  3. Step 3: Cross multiply
    441x = 682.50 × 682.50
  4. Step 4: Simplify right side
    441x = 465,806.25
  5. Step 5: Solve for x
    x = 465,806.25/441
  6. Step 6: Final answer
    x = 1,056.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.