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Finding the Third Proportional to 190,462.25 and 396,688.25

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Solution

The third proportional to 190,462.25 and 396,688.25 is: 826,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,462.25 : 396,688.25 = 396,688.25 : x
  2. Step 2: Convert to fraction form
    190,462.25/396,688.25 = 396,688.25/x
  3. Step 3: Cross multiply
    190,462.25x = 396,688.25 × 396,688.25
  4. Step 4: Simplify right side
    190,462.25x = 157,361,567,688.06
  5. Step 5: Solve for x
    x = 157,361,567,688.06/190,462.25
  6. Step 6: Final answer
    x = 826,208.70

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.