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Finding the Third Proportional to 199,436 and 430,180

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Solution

The third proportional to 199,436 and 430,180 is: 927,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,436 : 430,180 = 430,180 : x
  2. Step 2: Convert to fraction form
    199,436/430,180 = 430,180/x
  3. Step 3: Cross multiply
    199,436x = 430,180 × 430,180
  4. Step 4: Simplify right side
    199,436x = 185,054,832,400
  5. Step 5: Solve for x
    x = 185,054,832,400/199,436
  6. Step 6: Final answer
    x = 927,890.81

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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.