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Finding the Third Proportional to 1,313,520,416 and 2,855,672,728

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Solution

The third proportional to 1,313,520,416 and 2,855,672,728 is: 6,208,405,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,520,416 : 2,855,672,728 = 2,855,672,728 : x
  2. Step 2: Convert to fraction form
    1,313,520,416/2,855,672,728 = 2,855,672,728/x
  3. Step 3: Cross multiply
    1,313,520,416x = 2,855,672,728 × 2,855,672,728
  4. Step 4: Simplify right side
    1,313,520,416x = 8,154,866,729,442,962,432
  5. Step 5: Solve for x
    x = 8,154,866,729,442,962,432/1,313,520,416
  6. Step 6: Final answer
    x = 6,208,405,008.49

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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.