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Finding the Third Proportional to 621,588.94 and 1,338,821.16

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Solution

The third proportional to 621,588.94 and 1,338,821.16 is: 2,883,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,588.94 : 1,338,821.16 = 1,338,821.16 : x
  2. Step 2: Convert to fraction form
    621,588.94/1,338,821.16 = 1,338,821.16/x
  3. Step 3: Cross multiply
    621,588.94x = 1,338,821.16 × 1,338,821.16
  4. Step 4: Simplify right side
    621,588.94x = 1,792,442,088,422.59
  5. Step 5: Solve for x
    x = 1,792,442,088,422.59/621,588.94
  6. Step 6: Final answer
    x = 2,883,645.41

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.