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Finding the Third Proportional to 267,054 and 415,899

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Solution

The third proportional to 267,054 and 415,899 is: 647,704.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,054 : 415,899 = 415,899 : x
  2. Step 2: Convert to fraction form
    267,054/415,899 = 415,899/x
  3. Step 3: Cross multiply
    267,054x = 415,899 × 415,899
  4. Step 4: Simplify right side
    267,054x = 172,971,978,201
  5. Step 5: Solve for x
    x = 172,971,978,201/267,054
  6. Step 6: Final answer
    x = 647,704.13

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.