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Finding the Third Proportional to 696,879.50 and 981,392

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Solution

The third proportional to 696,879.50 and 981,392 is: 1,382,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,879.50 : 981,392 = 981,392 : x
  2. Step 2: Convert to fraction form
    696,879.50/981,392 = 981,392/x
  3. Step 3: Cross multiply
    696,879.50x = 981,392 × 981,392
  4. Step 4: Simplify right side
    696,879.50x = 963,130,257,664
  5. Step 5: Solve for x
    x = 963,130,257,664/696,879.50
  6. Step 6: Final answer
    x = 1,382,061.40

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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.