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Finding the Third Proportional to 366,953 and 561,369

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Solution

The third proportional to 366,953 and 561,369 is: 858,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,953 : 561,369 = 561,369 : x
  2. Step 2: Convert to fraction form
    366,953/561,369 = 561,369/x
  3. Step 3: Cross multiply
    366,953x = 561,369 × 561,369
  4. Step 4: Simplify right side
    366,953x = 315,135,154,161
  5. Step 5: Solve for x
    x = 315,135,154,161/366,953
  6. Step 6: Final answer
    x = 858,788.88

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.