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Finding the Third Proportional to 190,071 and 411,512

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Solution

The third proportional to 190,071 and 411,512 is: 890,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,071 : 411,512 = 411,512 : x
  2. Step 2: Convert to fraction form
    190,071/411,512 = 411,512/x
  3. Step 3: Cross multiply
    190,071x = 411,512 × 411,512
  4. Step 4: Simplify right side
    190,071x = 169,342,126,144
  5. Step 5: Solve for x
    x = 169,342,126,144/190,071
  6. Step 6: Final answer
    x = 890,941.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.