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Finding the Third Proportional to 413,936 and 623,322

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Solution

The third proportional to 413,936 and 623,322 is: 938,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,936 : 623,322 = 623,322 : x
  2. Step 2: Convert to fraction form
    413,936/623,322 = 623,322/x
  3. Step 3: Cross multiply
    413,936x = 623,322 × 623,322
  4. Step 4: Simplify right side
    413,936x = 388,530,315,684
  5. Step 5: Solve for x
    x = 388,530,315,684/413,936
  6. Step 6: Final answer
    x = 938,624.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.