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Finding the Third Proportional to 415,645 and 893,449

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Solution

The third proportional to 415,645 and 893,449 is: 1,920,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,645 : 893,449 = 893,449 : x
  2. Step 2: Convert to fraction form
    415,645/893,449 = 893,449/x
  3. Step 3: Cross multiply
    415,645x = 893,449 × 893,449
  4. Step 4: Simplify right side
    415,645x = 798,251,115,601
  5. Step 5: Solve for x
    x = 798,251,115,601/415,645
  6. Step 6: Final answer
    x = 1,920,511.77

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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.