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Finding the Fourth Proportional to 944.46, 1,416.66 and 295.20

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Solution

The fourth proportional to 944.46, 1,416.66 and 295.20 is: 442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.46 : 1,416.66 = 295.20 : x
  2. Step 2: Convert to fraction form
    944.46/1,416.66 = 295.20/x
  3. Step 3: Cross multiply
    944.46x = 1,416.66 × 295.20
  4. Step 4: Simplify right side
    944.46x = 418,198.03
  5. Step 5: Solve for x
    x = 418,198.03/944.46
  6. Step 6: Final answer
    x = 442.79

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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.