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Finding the Third Proportional to 441.56 and 455.06

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Solution

The third proportional to 441.56 and 455.06 is: 468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.56 : 455.06 = 455.06 : x
  2. Step 2: Convert to fraction form
    441.56/455.06 = 455.06/x
  3. Step 3: Cross multiply
    441.56x = 455.06 × 455.06
  4. Step 4: Simplify right side
    441.56x = 207,081.88
  5. Step 5: Solve for x
    x = 207,081.88/441.56
  6. Step 6: Final answer
    x = 468.98

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.