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Finding the Third Proportional to 401,568.19 and 621,792.28

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Solution

The third proportional to 401,568.19 and 621,792.28 is: 962,789.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,568.19 : 621,792.28 = 621,792.28 : x
  2. Step 2: Convert to fraction form
    401,568.19/621,792.28 = 621,792.28/x
  3. Step 3: Cross multiply
    401,568.19x = 621,792.28 × 621,792.28
  4. Step 4: Simplify right side
    401,568.19x = 386,625,641,022.08
  5. Step 5: Solve for x
    x = 386,625,641,022.08/401,568.19
  6. Step 6: Final answer
    x = 962,789.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.