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Finding the Fourth Proportional to 383,385.92, 529,074.68 and 222,336.46

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Solution

The fourth proportional to 383,385.92, 529,074.68 and 222,336.46 is: 306,825.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,385.92 : 529,074.68 = 222,336.46 : x
  2. Step 2: Convert to fraction form
    383,385.92/529,074.68 = 222,336.46/x
  3. Step 3: Cross multiply
    383,385.92x = 529,074.68 × 222,336.46
  4. Step 4: Simplify right side
    383,385.92x = 117,632,591,426.83
  5. Step 5: Solve for x
    x = 117,632,591,426.83/383,385.92
  6. Step 6: Final answer
    x = 306,825.54

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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.