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Finding the Third Proportional to 441 and 656.25

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Solution

The third proportional to 441 and 656.25 is: 976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    441 : 656.25 = 656.25 : x
  2. Step 2: Convert to fraction form
    441/656.25 = 656.25/x
  3. Step 3: Cross multiply
    441x = 656.25 × 656.25
  4. Step 4: Simplify right side
    441x = 430,664.06
  5. Step 5: Solve for x
    x = 430,664.06/441
  6. Step 6: Final answer
    x = 976.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.