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Finding the Fourth Proportional to 383,676.08, 529,471.89 and 222,625.40

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Solution

The fourth proportional to 383,676.08, 529,471.89 and 222,625.40 is: 307,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,676.08 : 529,471.89 = 222,625.40 : x
  2. Step 2: Convert to fraction form
    383,676.08/529,471.89 = 222,625.40/x
  3. Step 3: Cross multiply
    383,676.08x = 529,471.89 × 222,625.40
  4. Step 4: Simplify right side
    383,676.08x = 117,873,888,652.65
  5. Step 5: Solve for x
    x = 117,873,888,652.65/383,676.08
  6. Step 6: Final answer
    x = 307,222.41

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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.