Home / 519,148.80-778,593.60-199,231.20

Finding the Fourth Proportional to 519,148.80, 778,593.60 and 199,231.20

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Solution

The fourth proportional to 519,148.80, 778,593.60 and 199,231.20 is: 298,797.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,148.80 : 778,593.60 = 199,231.20 : x
  2. Step 2: Convert to fraction form
    519,148.80/778,593.60 = 199,231.20/x
  3. Step 3: Cross multiply
    519,148.80x = 778,593.60 × 199,231.20
  4. Step 4: Simplify right side
    519,148.80x = 155,120,137,240.32
  5. Step 5: Solve for x
    x = 155,120,137,240.32/519,148.80
  6. Step 6: Final answer
    x = 298,797.06

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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.