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Finding the Fourth Proportional to 412,039.87, 568,601.73 and 228,270.88

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Solution

The fourth proportional to 412,039.87, 568,601.73 and 228,270.88 is: 315,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,039.87 : 568,601.73 = 228,270.88 : x
  2. Step 2: Convert to fraction form
    412,039.87/568,601.73 = 228,270.88/x
  3. Step 3: Cross multiply
    412,039.87x = 568,601.73 × 228,270.88
  4. Step 4: Simplify right side
    412,039.87x = 129,795,217,276.62
  5. Step 5: Solve for x
    x = 129,795,217,276.62/412,039.87
  6. Step 6: Final answer
    x = 315,006.45

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1.5x scale

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.