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Finding the Third Proportional to 424,929 and 913,011

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Solution

The third proportional to 424,929 and 913,011 is: 1,961,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,929 : 913,011 = 913,011 : x
  2. Step 2: Convert to fraction form
    424,929/913,011 = 913,011/x
  3. Step 3: Cross multiply
    424,929x = 913,011 × 913,011
  4. Step 4: Simplify right side
    424,929x = 833,589,086,121
  5. Step 5: Solve for x
    x = 833,589,086,121/424,929
  6. Step 6: Final answer
    x = 1,961,713.81

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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.