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Finding the Third Proportional to 985,865 and 1,587,231

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Solution

The third proportional to 985,865 and 1,587,231 is: 2,555,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,865 : 1,587,231 = 1,587,231 : x
  2. Step 2: Convert to fraction form
    985,865/1,587,231 = 1,587,231/x
  3. Step 3: Cross multiply
    985,865x = 1,587,231 × 1,587,231
  4. Step 4: Simplify right side
    985,865x = 2,519,302,247,361
  5. Step 5: Solve for x
    x = 2,519,302,247,361/985,865
  6. Step 6: Final answer
    x = 2,555,423.15

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.