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Finding the Third Proportional to 188,286 and 414,480

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Solution

The third proportional to 188,286 and 414,480 is: 912,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,286 : 414,480 = 414,480 : x
  2. Step 2: Convert to fraction form
    188,286/414,480 = 414,480/x
  3. Step 3: Cross multiply
    188,286x = 414,480 × 414,480
  4. Step 4: Simplify right side
    188,286x = 171,793,670,400
  5. Step 5: Solve for x
    x = 171,793,670,400/188,286
  6. Step 6: Final answer
    x = 912,408.09

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.