Home / 395,578.23-545,865.53-223,511.15

Finding the Fourth Proportional to 395,578.23, 545,865.53 and 223,511.15

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Solution

The fourth proportional to 395,578.23, 545,865.53 and 223,511.15 is: 308,427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,578.23 : 545,865.53 = 223,511.15 : x
  2. Step 2: Convert to fraction form
    395,578.23/545,865.53 = 223,511.15/x
  3. Step 3: Cross multiply
    395,578.23x = 545,865.53 × 223,511.15
  4. Step 4: Simplify right side
    395,578.23x = 122,007,028,508.78
  5. Step 5: Solve for x
    x = 122,007,028,508.78/395,578.23
  6. Step 6: Final answer
    x = 308,427.06

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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.