Home / 383,257.85-528,778.74-222,081.75

Finding the Fourth Proportional to 383,257.85, 528,778.74 and 222,081.75

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Solution

The fourth proportional to 383,257.85, 528,778.74 and 222,081.75 is: 306,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,257.85 : 528,778.74 = 222,081.75 : x
  2. Step 2: Convert to fraction form
    383,257.85/528,778.74 = 222,081.75/x
  3. Step 3: Cross multiply
    383,257.85x = 528,778.74 × 222,081.75
  4. Step 4: Simplify right side
    383,257.85x = 117,432,108,774.80
  5. Step 5: Solve for x
    x = 117,432,108,774.80/383,257.85
  6. Step 6: Final answer
    x = 306,404.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.