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Finding the Third Proportional to 197,379,157 and 427,707,638

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Solution

The third proportional to 197,379,157 and 427,707,638 is: 926,814,291.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,379,157 : 427,707,638 = 427,707,638 : x
  2. Step 2: Convert to fraction form
    197,379,157/427,707,638 = 427,707,638/x
  3. Step 3: Cross multiply
    197,379,157x = 427,707,638 × 427,707,638
  4. Step 4: Simplify right side
    197,379,157x = 182,933,823,603,539,040
  5. Step 5: Solve for x
    x = 182,933,823,603,539,040/197,379,157
  6. Step 6: Final answer
    x = 926,814,291.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.