Home / 393,786.21-590,534.43-140,998.17

Finding the Fourth Proportional to 393,786.21, 590,534.43 and 140,998.17

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Solution

The fourth proportional to 393,786.21, 590,534.43 and 140,998.17 is: 211,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,786.21 : 590,534.43 = 140,998.17 : x
  2. Step 2: Convert to fraction form
    393,786.21/590,534.43 = 140,998.17/x
  3. Step 3: Cross multiply
    393,786.21x = 590,534.43 × 140,998.17
  4. Step 4: Simplify right side
    393,786.21x = 83,264,273,951.99
  5. Step 5: Solve for x
    x = 83,264,273,951.99/393,786.21
  6. Step 6: Final answer
    x = 211,445.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.