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Finding the Fourth Proportional to 378,471.33, 567,064.35 and 228,396.27

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Solution

The fourth proportional to 378,471.33, 567,064.35 and 228,396.27 is: 342,206.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,471.33 : 567,064.35 = 228,396.27 : x
  2. Step 2: Convert to fraction form
    378,471.33/567,064.35 = 228,396.27/x
  3. Step 3: Cross multiply
    378,471.33x = 567,064.35 × 228,396.27
  4. Step 4: Simplify right side
    378,471.33x = 129,515,379,554.65
  5. Step 5: Solve for x
    x = 129,515,379,554.65/378,471.33
  6. Step 6: Final answer
    x = 342,206.58

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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.