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Finding the Fourth Proportional to 867.33, 1,196.85 and 474.34

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Solution

The fourth proportional to 867.33, 1,196.85 and 474.34 is: 654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.33 : 1,196.85 = 474.34 : x
  2. Step 2: Convert to fraction form
    867.33/1,196.85 = 474.34/x
  3. Step 3: Cross multiply
    867.33x = 1,196.85 × 474.34
  4. Step 4: Simplify right side
    867.33x = 567,713.83
  5. Step 5: Solve for x
    x = 567,713.83/867.33
  6. Step 6: Final answer
    x = 654.55

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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.