Home / 681,171.21-940,016.57-394,857.36

Finding the Fourth Proportional to 681,171.21, 940,016.57 and 394,857.36

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Solution

The fourth proportional to 681,171.21, 940,016.57 and 394,857.36 is: 544,903.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,171.21 : 940,016.57 = 394,857.36 : x
  2. Step 2: Convert to fraction form
    681,171.21/940,016.57 = 394,857.36/x
  3. Step 3: Cross multiply
    681,171.21x = 940,016.57 × 394,857.36
  4. Step 4: Simplify right side
    681,171.21x = 371,172,459,212.17
  5. Step 5: Solve for x
    x = 371,172,459,212.17/681,171.21
  6. Step 6: Final answer
    x = 544,903.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.