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Finding the Fourth Proportional to 874.36, 1,206.96 and 594.46

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Solution

The fourth proportional to 874.36, 1,206.96 and 594.46 is: 820.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    874.36 : 1,206.96 = 594.46 : x
  2. Step 2: Convert to fraction form
    874.36/1,206.96 = 594.46/x
  3. Step 3: Cross multiply
    874.36x = 1,206.96 × 594.46
  4. Step 4: Simplify right side
    874.36x = 717,489.44
  5. Step 5: Solve for x
    x = 717,489.44/874.36
  6. Step 6: Final answer
    x = 820.59

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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.