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Finding the Fourth Proportional to 383,597.87, 529,393.86 and 222,451.52

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Solution

The fourth proportional to 383,597.87, 529,393.86 and 222,451.52 is: 306,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,597.87 : 529,393.86 = 222,451.52 : x
  2. Step 2: Convert to fraction form
    383,597.87/529,393.86 = 222,451.52/x
  3. Step 3: Cross multiply
    383,597.87x = 529,393.86 × 222,451.52
  4. Step 4: Simplify right side
    383,597.87x = 117,764,466,188.70
  5. Step 5: Solve for x
    x = 117,764,466,188.70/383,597.87
  6. Step 6: Final answer
    x = 306,999.80

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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.