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Finding the Fourth Proportional to 383,956.50, 529,794.36 and 222,774.60

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Solution

The fourth proportional to 383,956.50, 529,794.36 and 222,774.60 is: 307,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,956.50 : 529,794.36 = 222,774.60 : x
  2. Step 2: Convert to fraction form
    383,956.50/529,794.36 = 222,774.60/x
  3. Step 3: Cross multiply
    383,956.50x = 529,794.36 × 222,774.60
  4. Step 4: Simplify right side
    383,956.50x = 118,024,726,631.26
  5. Step 5: Solve for x
    x = 118,024,726,631.26/383,956.50
  6. Step 6: Final answer
    x = 307,390.88

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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.