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Finding the Third Proportional to 993,400.88 and 2,138,422.78

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Solution

The third proportional to 993,400.88 and 2,138,422.78 is: 4,603,229.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,400.88 : 2,138,422.78 = 2,138,422.78 : x
  2. Step 2: Convert to fraction form
    993,400.88/2,138,422.78 = 2,138,422.78/x
  3. Step 3: Cross multiply
    993,400.88x = 2,138,422.78 × 2,138,422.78
  4. Step 4: Simplify right side
    993,400.88x = 4,572,851,991,368.99
  5. Step 5: Solve for x
    x = 4,572,851,991,368.99/993,400.88
  6. Step 6: Final answer
    x = 4,603,229.28

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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.