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Finding the Fourth Proportional to 481,876.12, 721,832.46 and 228,388.24

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Solution

The fourth proportional to 481,876.12, 721,832.46 and 228,388.24 is: 342,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,876.12 : 721,832.46 = 228,388.24 : x
  2. Step 2: Convert to fraction form
    481,876.12/721,832.46 = 228,388.24/x
  3. Step 3: Cross multiply
    481,876.12x = 721,832.46 × 228,388.24
  4. Step 4: Simplify right side
    481,876.12x = 164,858,045,114.27
  5. Step 5: Solve for x
    x = 164,858,045,114.27/481,876.12
  6. Step 6: Final answer
    x = 342,117.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.