Home / 263,067.51-394,604.91-85,575.45

Finding the Fourth Proportional to 263,067.51, 394,604.91 and 85,575.45

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Solution

The fourth proportional to 263,067.51, 394,604.91 and 85,575.45 is: 128,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,067.51 : 394,604.91 = 85,575.45 : x
  2. Step 2: Convert to fraction form
    263,067.51/394,604.91 = 85,575.45/x
  3. Step 3: Cross multiply
    263,067.51x = 394,604.91 × 85,575.45
  4. Step 4: Simplify right side
    263,067.51x = 33,768,492,745.46
  5. Step 5: Solve for x
    x = 33,768,492,745.46/263,067.51
  6. Step 6: Final answer
    x = 128,364.36

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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.