Home / 439,169.44-605,719.38-378,019.66

Finding the Fourth Proportional to 439,169.44, 605,719.38 and 378,019.66

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Solution

The fourth proportional to 439,169.44, 605,719.38 and 378,019.66 is: 521,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,169.44 : 605,719.38 = 378,019.66 : x
  2. Step 2: Convert to fraction form
    439,169.44/605,719.38 = 378,019.66/x
  3. Step 3: Cross multiply
    439,169.44x = 605,719.38 × 378,019.66
  4. Step 4: Simplify right side
    439,169.44x = 228,973,834,083.01
  5. Step 5: Solve for x
    x = 228,973,834,083.01/439,169.44
  6. Step 6: Final answer
    x = 521,379.25

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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.