Home / 666,588.26-919,905.17-394,556.90

Finding the Fourth Proportional to 666,588.26, 919,905.17 and 394,556.90

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Solution

The fourth proportional to 666,588.26, 919,905.17 and 394,556.90 is: 544,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,588.26 : 919,905.17 = 394,556.90 : x
  2. Step 2: Convert to fraction form
    666,588.26/919,905.17 = 394,556.90/x
  3. Step 3: Cross multiply
    666,588.26x = 919,905.17 × 394,556.90
  4. Step 4: Simplify right side
    666,588.26x = 362,954,928,738.94
  5. Step 5: Solve for x
    x = 362,954,928,738.94/666,588.26
  6. Step 6: Final answer
    x = 544,496.43

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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.