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Finding the Third Proportional to 696,877 and 981,388

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Solution

The third proportional to 696,877 and 981,388 is: 1,382,055.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,877 : 981,388 = 981,388 : x
  2. Step 2: Convert to fraction form
    696,877/981,388 = 981,388/x
  3. Step 3: Cross multiply
    696,877x = 981,388 × 981,388
  4. Step 4: Simplify right side
    696,877x = 963,122,406,544
  5. Step 5: Solve for x
    x = 963,122,406,544/696,877
  6. Step 6: Final answer
    x = 1,382,055.09

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.