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Finding the Third Proportional to 854,555 and 1,867,911

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Solution

The third proportional to 854,555 and 1,867,911 is: 4,082,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,555 : 1,867,911 = 1,867,911 : x
  2. Step 2: Convert to fraction form
    854,555/1,867,911 = 1,867,911/x
  3. Step 3: Cross multiply
    854,555x = 1,867,911 × 1,867,911
  4. Step 4: Simplify right side
    854,555x = 3,489,091,503,921
  5. Step 5: Solve for x
    x = 3,489,091,503,921/854,555
  6. Step 6: Final answer
    x = 4,082,933.81

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.