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Finding the Third Proportional to 446.13 and 709.75

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Solution

The third proportional to 446.13 and 709.75 is: 1,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.13 : 709.75 = 709.75 : x
  2. Step 2: Convert to fraction form
    446.13/709.75 = 709.75/x
  3. Step 3: Cross multiply
    446.13x = 709.75 × 709.75
  4. Step 4: Simplify right side
    446.13x = 503,745.06
  5. Step 5: Solve for x
    x = 503,745.06/446.13
  6. Step 6: Final answer
    x = 1,129.16

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.