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Finding the Third Proportional to 985,260 and 2,117,860

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Solution

The third proportional to 985,260 and 2,117,860 is: 4,552,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,260 : 2,117,860 = 2,117,860 : x
  2. Step 2: Convert to fraction form
    985,260/2,117,860 = 2,117,860/x
  3. Step 3: Cross multiply
    985,260x = 2,117,860 × 2,117,860
  4. Step 4: Simplify right side
    985,260x = 4,485,330,979,600
  5. Step 5: Solve for x
    x = 4,485,330,979,600/985,260
  6. Step 6: Final answer
    x = 4,552,433.85

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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.