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Finding the Fourth Proportional to 383,200.97, 528,817.48 and 222,149.37

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Solution

The fourth proportional to 383,200.97, 528,817.48 and 222,149.37 is: 306,566.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,200.97 : 528,817.48 = 222,149.37 : x
  2. Step 2: Convert to fraction form
    383,200.97/528,817.48 = 222,149.37/x
  3. Step 3: Cross multiply
    383,200.97x = 528,817.48 × 222,149.37
  4. Step 4: Simplify right side
    383,200.97x = 117,476,471,454.68
  5. Step 5: Solve for x
    x = 117,476,471,454.68/383,200.97
  6. Step 6: Final answer
    x = 306,566.22

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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.