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Finding the Third Proportional to 426,599 and 918,229

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Solution

The third proportional to 426,599 and 918,229 is: 1,976,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,599 : 918,229 = 918,229 : x
  2. Step 2: Convert to fraction form
    426,599/918,229 = 918,229/x
  3. Step 3: Cross multiply
    426,599x = 918,229 × 918,229
  4. Step 4: Simplify right side
    426,599x = 843,144,496,441
  5. Step 5: Solve for x
    x = 843,144,496,441/426,599
  6. Step 6: Final answer
    x = 1,976,433.36

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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.