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Finding the Fourth Proportional to 618.70, 927.79 and 185.62

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Solution

The fourth proportional to 618.70, 927.79 and 185.62 is: 278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.70 : 927.79 = 185.62 : x
  2. Step 2: Convert to fraction form
    618.70/927.79 = 185.62/x
  3. Step 3: Cross multiply
    618.70x = 927.79 × 185.62
  4. Step 4: Simplify right side
    618.70x = 172,216.38
  5. Step 5: Solve for x
    x = 172,216.38/618.70
  6. Step 6: Final answer
    x = 278.35

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Similar ratio
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1.5x scale

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.