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Finding the Third Proportional to 188,795 and 399,460

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Solution

The third proportional to 188,795 and 399,460 is: 845,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,795 : 399,460 = 399,460 : x
  2. Step 2: Convert to fraction form
    188,795/399,460 = 399,460/x
  3. Step 3: Cross multiply
    188,795x = 399,460 × 399,460
  4. Step 4: Simplify right side
    188,795x = 159,568,291,600
  5. Step 5: Solve for x
    x = 159,568,291,600/188,795
  6. Step 6: Final answer
    x = 845,193.42

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.