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Finding the Fourth Proportional to 378,474.33, 567,068.85 and 228,399.27

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Solution

The fourth proportional to 378,474.33, 567,068.85 and 228,399.27 is: 342,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,474.33 : 567,068.85 = 228,399.27 : x
  2. Step 2: Convert to fraction form
    378,474.33/567,068.85 = 228,399.27/x
  3. Step 3: Cross multiply
    378,474.33x = 567,068.85 × 228,399.27
  4. Step 4: Simplify right side
    378,474.33x = 129,518,111,379.74
  5. Step 5: Solve for x
    x = 129,518,111,379.74/378,474.33
  6. Step 6: Final answer
    x = 342,211.09

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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.