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Finding the Fourth Proportional to 568,622.52, 851,082.02 and 418,803.80

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Solution

The fourth proportional to 568,622.52, 851,082.02 and 418,803.80 is: 626,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,622.52 : 851,082.02 = 418,803.80 : x
  2. Step 2: Convert to fraction form
    568,622.52/851,082.02 = 418,803.80/x
  3. Step 3: Cross multiply
    568,622.52x = 851,082.02 × 418,803.80
  4. Step 4: Simplify right side
    568,622.52x = 356,436,384,087.68
  5. Step 5: Solve for x
    x = 356,436,384,087.68/568,622.52
  6. Step 6: Final answer
    x = 626,841.84

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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.