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Finding the Third Proportional to 149,611 and 322,999

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Solution

The third proportional to 149,611 and 322,999 is: 697,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,611 : 322,999 = 322,999 : x
  2. Step 2: Convert to fraction form
    149,611/322,999 = 322,999/x
  3. Step 3: Cross multiply
    149,611x = 322,999 × 322,999
  4. Step 4: Simplify right side
    149,611x = 104,328,354,001
  5. Step 5: Solve for x
    x = 104,328,354,001/149,611
  6. Step 6: Final answer
    x = 697,330.77

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.