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Finding the Fourth Proportional to 383,118.75, 528,703.74 and 222,067.17

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Solution

The fourth proportional to 383,118.75, 528,703.74 and 222,067.17 is: 306,452.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,118.75 : 528,703.74 = 222,067.17 : x
  2. Step 2: Convert to fraction form
    383,118.75/528,703.74 = 222,067.17/x
  3. Step 3: Cross multiply
    383,118.75x = 528,703.74 × 222,067.17
  4. Step 4: Simplify right side
    383,118.75x = 117,407,743,310.22
  5. Step 5: Solve for x
    x = 117,407,743,310.22/383,118.75
  6. Step 6: Final answer
    x = 306,452.62

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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.