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Finding the Third Proportional to 985,560 and 2,118,351

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Solution

The third proportional to 985,560 and 2,118,351 is: 4,553,158.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,560 : 2,118,351 = 2,118,351 : x
  2. Step 2: Convert to fraction form
    985,560/2,118,351 = 2,118,351/x
  3. Step 3: Cross multiply
    985,560x = 2,118,351 × 2,118,351
  4. Step 4: Simplify right side
    985,560x = 4,487,410,959,201
  5. Step 5: Solve for x
    x = 4,487,410,959,201/985,560
  6. Step 6: Final answer
    x = 4,553,158.57

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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.