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Finding the Third Proportional to 188,190 and 403,668

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Solution

The third proportional to 188,190 and 403,668 is: 865,868.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,190 : 403,668 = 403,668 : x
  2. Step 2: Convert to fraction form
    188,190/403,668 = 403,668/x
  3. Step 3: Cross multiply
    188,190x = 403,668 × 403,668
  4. Step 4: Simplify right side
    188,190x = 162,947,854,224
  5. Step 5: Solve for x
    x = 162,947,854,224/188,190
  6. Step 6: Final answer
    x = 865,868.83

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.