Home / 439,517.37-605,448.24-374,775.78

Finding the Fourth Proportional to 439,517.37, 605,448.24 and 374,775.78

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Solution

The fourth proportional to 439,517.37, 605,448.24 and 374,775.78 is: 516,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,517.37 : 605,448.24 = 374,775.78 : x
  2. Step 2: Convert to fraction form
    439,517.37/605,448.24 = 374,775.78/x
  3. Step 3: Cross multiply
    439,517.37x = 605,448.24 × 374,775.78
  4. Step 4: Simplify right side
    439,517.37x = 226,907,336,395.63
  5. Step 5: Solve for x
    x = 226,907,336,395.63/439,517.37
  6. Step 6: Final answer
    x = 516,264.78

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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.