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Finding the Third Proportional to 424,840 and 926,972

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Solution

The third proportional to 424,840 and 926,972 is: 2,022,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,840 : 926,972 = 926,972 : x
  2. Step 2: Convert to fraction form
    424,840/926,972 = 926,972/x
  3. Step 3: Cross multiply
    424,840x = 926,972 × 926,972
  4. Step 4: Simplify right side
    424,840x = 859,277,088,784
  5. Step 5: Solve for x
    x = 859,277,088,784/424,840
  6. Step 6: Final answer
    x = 2,022,589.89

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.