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Finding the Fourth Proportional to 383,103.54, 528,682.89 and 222,052.02

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Solution

The fourth proportional to 383,103.54, 528,682.89 and 222,052.02 is: 306,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,103.54 : 528,682.89 = 222,052.02 : x
  2. Step 2: Convert to fraction form
    383,103.54/528,682.89 = 222,052.02/x
  3. Step 3: Cross multiply
    383,103.54x = 528,682.89 × 222,052.02
  4. Step 4: Simplify right side
    383,103.54x = 117,395,103,663.94
  5. Step 5: Solve for x
    x = 117,395,103,663.94/383,103.54
  6. Step 6: Final answer
    x = 306,431.79

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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.