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Finding the Third Proportional to 414,039 and 623,132

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Solution

The third proportional to 414,039 and 623,132 is: 937,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,039 : 623,132 = 623,132 : x
  2. Step 2: Convert to fraction form
    414,039/623,132 = 623,132/x
  3. Step 3: Cross multiply
    414,039x = 623,132 × 623,132
  4. Step 4: Simplify right side
    414,039x = 388,293,489,424
  5. Step 5: Solve for x
    x = 388,293,489,424/414,039
  6. Step 6: Final answer
    x = 937,818.63

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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.