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Finding the Fourth Proportional to 411,765.93, 568,266.44 and 303,367.28

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Solution

The fourth proportional to 411,765.93, 568,266.44 and 303,367.28 is: 418,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,765.93 : 568,266.44 = 303,367.28 : x
  2. Step 2: Convert to fraction form
    411,765.93/568,266.44 = 303,367.28/x
  3. Step 3: Cross multiply
    411,765.93x = 568,266.44 × 303,367.28
  4. Step 4: Simplify right side
    411,765.93x = 172,393,439,859.92
  5. Step 5: Solve for x
    x = 172,393,439,859.92/411,765.93
  6. Step 6: Final answer
    x = 418,668.54

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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.