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Finding the Fourth Proportional to 2,438.51, 3,658.26 and 794.61

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Solution

The fourth proportional to 2,438.51, 3,658.26 and 794.61 is: 1,192.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.51 : 3,658.26 = 794.61 : x
  2. Step 2: Convert to fraction form
    2,438.51/3,658.26 = 794.61/x
  3. Step 3: Cross multiply
    2,438.51x = 3,658.26 × 794.61
  4. Step 4: Simplify right side
    2,438.51x = 2,906,889.98
  5. Step 5: Solve for x
    x = 2,906,889.98/2,438.51
  6. Step 6: Final answer
    x = 1,192.08

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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.