Home / 439,047.05-605,986.17-285,818.36

Finding the Fourth Proportional to 439,047.05, 605,986.17 and 285,818.36

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Solution

The fourth proportional to 439,047.05, 605,986.17 and 285,818.36 is: 394,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,047.05 : 605,986.17 = 285,818.36 : x
  2. Step 2: Convert to fraction form
    439,047.05/605,986.17 = 285,818.36/x
  3. Step 3: Cross multiply
    439,047.05x = 605,986.17 × 285,818.36
  4. Step 4: Simplify right side
    439,047.05x = 173,201,969,190.33
  5. Step 5: Solve for x
    x = 173,201,969,190.33/439,047.05
  6. Step 6: Final answer
    x = 394,495.24

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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.