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Finding the Third Proportional to 860,870 and 1,885,408

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Solution

The third proportional to 860,870 and 1,885,408 is: 4,129,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,870 : 1,885,408 = 1,885,408 : x
  2. Step 2: Convert to fraction form
    860,870/1,885,408 = 1,885,408/x
  3. Step 3: Cross multiply
    860,870x = 1,885,408 × 1,885,408
  4. Step 4: Simplify right side
    860,870x = 3,554,763,326,464
  5. Step 5: Solve for x
    x = 3,554,763,326,464/860,870
  6. Step 6: Final answer
    x = 4,129,268.45

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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.