Home / 769,791.56-1,154,566.05-257,452.80

Finding the Fourth Proportional to 769,791.56, 1,154,566.05 and 257,452.80

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Solution

The fourth proportional to 769,791.56, 1,154,566.05 and 257,452.80 is: 386,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,791.56 : 1,154,566.05 = 257,452.80 : x
  2. Step 2: Convert to fraction form
    769,791.56/1,154,566.05 = 257,452.80/x
  3. Step 3: Cross multiply
    769,791.56x = 1,154,566.05 × 257,452.80
  4. Step 4: Simplify right side
    769,791.56x = 297,246,262,357.44
  5. Step 5: Solve for x
    x = 297,246,262,357.44/769,791.56
  6. Step 6: Final answer
    x = 386,138.64

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1.5x scale

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.