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Finding the Third Proportional to 860,505.19 and 1,890,867.38

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Solution

The third proportional to 860,505.19 and 1,890,867.38 is: 4,154,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,505.19 : 1,890,867.38 = 1,890,867.38 : x
  2. Step 2: Convert to fraction form
    860,505.19/1,890,867.38 = 1,890,867.38/x
  3. Step 3: Cross multiply
    860,505.19x = 1,890,867.38 × 1,890,867.38
  4. Step 4: Simplify right side
    860,505.19x = 3,575,379,429,839.39
  5. Step 5: Solve for x
    x = 3,575,379,429,839.39/860,505.19
  6. Step 6: Final answer
    x = 4,154,977.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.