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Finding the Third Proportional to 426,254 and 918,988

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Solution

The third proportional to 426,254 and 918,988 is: 1,981,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,254 : 918,988 = 918,988 : x
  2. Step 2: Convert to fraction form
    426,254/918,988 = 918,988/x
  3. Step 3: Cross multiply
    426,254x = 918,988 × 918,988
  4. Step 4: Simplify right side
    426,254x = 844,538,944,144
  5. Step 5: Solve for x
    x = 844,538,944,144/426,254
  6. Step 6: Final answer
    x = 1,981,304.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.