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Finding the Third Proportional to 190,836 and 411,192

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Solution

The third proportional to 190,836 and 411,192 is: 885,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,836 : 411,192 = 411,192 : x
  2. Step 2: Convert to fraction form
    190,836/411,192 = 411,192/x
  3. Step 3: Cross multiply
    190,836x = 411,192 × 411,192
  4. Step 4: Simplify right side
    190,836x = 169,078,860,864
  5. Step 5: Solve for x
    x = 169,078,860,864/190,836
  6. Step 6: Final answer
    x = 885,990.38

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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.