Home / 259,944.15-389,913.14-82,452.69

Finding the Fourth Proportional to 259,944.15, 389,913.14 and 82,452.69

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Solution

The fourth proportional to 259,944.15, 389,913.14 and 82,452.69 is: 123,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,944.15 : 389,913.14 = 82,452.69 : x
  2. Step 2: Convert to fraction form
    259,944.15/389,913.14 = 82,452.69/x
  3. Step 3: Cross multiply
    259,944.15x = 389,913.14 × 82,452.69
  4. Step 4: Simplify right side
    259,944.15x = 32,149,386,847.08
  5. Step 5: Solve for x
    x = 32,149,386,847.08/259,944.15
  6. Step 6: Final answer
    x = 123,678.05

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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.