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Finding the Third Proportional to 208,423.13 and 424,212.75

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Solution

The third proportional to 208,423.13 and 424,212.75 is: 863,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,423.13 : 424,212.75 = 424,212.75 : x
  2. Step 2: Convert to fraction form
    208,423.13/424,212.75 = 424,212.75/x
  3. Step 3: Cross multiply
    208,423.13x = 424,212.75 × 424,212.75
  4. Step 4: Simplify right side
    208,423.13x = 179,956,457,262.56
  5. Step 5: Solve for x
    x = 179,956,457,262.56/208,423.13
  6. Step 6: Final answer
    x = 863,418.86

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.