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Finding the Third Proportional to 406,512 and 858,809.25

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Solution

The third proportional to 406,512 and 858,809.25 is: 1,814,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,512 : 858,809.25 = 858,809.25 : x
  2. Step 2: Convert to fraction form
    406,512/858,809.25 = 858,809.25/x
  3. Step 3: Cross multiply
    406,512x = 858,809.25 × 858,809.25
  4. Step 4: Simplify right side
    406,512x = 737,553,327,885.56
  5. Step 5: Solve for x
    x = 737,553,327,885.56/406,512
  6. Step 6: Final answer
    x = 1,814,345.77

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.