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Finding the Third Proportional to 679,916 and 1,000,191

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Solution

The third proportional to 679,916 and 1,000,191 is: 1,471,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,916 : 1,000,191 = 1,000,191 : x
  2. Step 2: Convert to fraction form
    679,916/1,000,191 = 1,000,191/x
  3. Step 3: Cross multiply
    679,916x = 1,000,191 × 1,000,191
  4. Step 4: Simplify right side
    679,916x = 1,000,382,036,481
  5. Step 5: Solve for x
    x = 1,000,382,036,481/679,916
  6. Step 6: Final answer
    x = 1,471,331.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.