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Finding the Third Proportional to 336,568 and 718,040

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Solution

The third proportional to 336,568 and 718,040 is: 1,531,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,568 : 718,040 = 718,040 : x
  2. Step 2: Convert to fraction form
    336,568/718,040 = 718,040/x
  3. Step 3: Cross multiply
    336,568x = 718,040 × 718,040
  4. Step 4: Simplify right side
    336,568x = 515,581,441,600
  5. Step 5: Solve for x
    x = 515,581,441,600/336,568
  6. Step 6: Final answer
    x = 1,531,878.97

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.