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Finding the Third Proportional to 184,220 and 396,688

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Solution

The third proportional to 184,220 and 396,688 is: 854,203.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,220 : 396,688 = 396,688 : x
  2. Step 2: Convert to fraction form
    184,220/396,688 = 396,688/x
  3. Step 3: Cross multiply
    184,220x = 396,688 × 396,688
  4. Step 4: Simplify right side
    184,220x = 157,361,369,344
  5. Step 5: Solve for x
    x = 157,361,369,344/184,220
  6. Step 6: Final answer
    x = 854,203.50

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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.