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Finding the Fourth Proportional to 867.15, 1,196.67 and 474.18

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Solution

The fourth proportional to 867.15, 1,196.67 and 474.18 is: 654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.15 : 1,196.67 = 474.18 : x
  2. Step 2: Convert to fraction form
    867.15/1,196.67 = 474.18/x
  3. Step 3: Cross multiply
    867.15x = 1,196.67 × 474.18
  4. Step 4: Simplify right side
    867.15x = 567,438.76
  5. Step 5: Solve for x
    x = 567,438.76/867.15
  6. Step 6: Final answer
    x = 654.37

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Double scale
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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.