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Finding the Third Proportional to 187,698 and 408,444

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Solution

The third proportional to 187,698 and 408,444 is: 888,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,698 : 408,444 = 408,444 : x
  2. Step 2: Convert to fraction form
    187,698/408,444 = 408,444/x
  3. Step 3: Cross multiply
    187,698x = 408,444 × 408,444
  4. Step 4: Simplify right side
    187,698x = 166,826,501,136
  5. Step 5: Solve for x
    x = 166,826,501,136/187,698
  6. Step 6: Final answer
    x = 888,802.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.