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Finding the Third Proportional to 723,822 and 1,590,408

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Solution

The third proportional to 723,822 and 1,590,408 is: 3,494,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,822 : 1,590,408 = 1,590,408 : x
  2. Step 2: Convert to fraction form
    723,822/1,590,408 = 1,590,408/x
  3. Step 3: Cross multiply
    723,822x = 1,590,408 × 1,590,408
  4. Step 4: Simplify right side
    723,822x = 2,529,397,606,464
  5. Step 5: Solve for x
    x = 2,529,397,606,464/723,822
  6. Step 6: Final answer
    x = 3,494,502.25

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.