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Finding the Fourth Proportional to 799.07, 1,197.99 and 474.66

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Solution

The fourth proportional to 799.07, 1,197.99 and 474.66 is: 711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.07 : 1,197.99 = 474.66 : x
  2. Step 2: Convert to fraction form
    799.07/1,197.99 = 474.66/x
  3. Step 3: Cross multiply
    799.07x = 1,197.99 × 474.66
  4. Step 4: Simplify right side
    799.07x = 568,637.93
  5. Step 5: Solve for x
    x = 568,637.93/799.07
  6. Step 6: Final answer
    x = 711.63

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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.