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Finding the Third Proportional to 690,866 and 1,494,090

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Solution

The third proportional to 690,866 and 1,494,090 is: 3,231,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,866 : 1,494,090 = 1,494,090 : x
  2. Step 2: Convert to fraction form
    690,866/1,494,090 = 1,494,090/x
  3. Step 3: Cross multiply
    690,866x = 1,494,090 × 1,494,090
  4. Step 4: Simplify right side
    690,866x = 2,232,304,928,100
  5. Step 5: Solve for x
    x = 2,232,304,928,100/690,866
  6. Step 6: Final answer
    x = 3,231,169.18

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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.