Home / 331,185.70-496,778.55-81,867.70

Finding the Fourth Proportional to 331,185.70, 496,778.55 and 81,867.70

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Solution

The fourth proportional to 331,185.70, 496,778.55 and 81,867.70 is: 122,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,185.70 : 496,778.55 = 81,867.70 : x
  2. Step 2: Convert to fraction form
    331,185.70/496,778.55 = 81,867.70/x
  3. Step 3: Cross multiply
    331,185.70x = 496,778.55 × 81,867.70
  4. Step 4: Simplify right side
    331,185.70x = 40,670,117,297.84
  5. Step 5: Solve for x
    x = 40,670,117,297.84/331,185.70
  6. Step 6: Final answer
    x = 122,801.55

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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.