Home / 677,868.35-1,016,198.46-257,439.47

Finding the Fourth Proportional to 677,868.35, 1,016,198.46 and 257,439.47

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Solution

The fourth proportional to 677,868.35, 1,016,198.46 and 257,439.47 is: 385,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,868.35 : 1,016,198.46 = 257,439.47 : x
  2. Step 2: Convert to fraction form
    677,868.35/1,016,198.46 = 257,439.47/x
  3. Step 3: Cross multiply
    677,868.35x = 1,016,198.46 × 257,439.47
  4. Step 4: Simplify right side
    677,868.35x = 261,609,587,876.22
  5. Step 5: Solve for x
    x = 261,609,587,876.22/677,868.35
  6. Step 6: Final answer
    x = 385,929.79

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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.