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Finding the Fourth Proportional to 944.09, 1,416.36 and 395.97

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Solution

The fourth proportional to 944.09, 1,416.36 and 395.97 is: 594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.09 : 1,416.36 = 395.97 : x
  2. Step 2: Convert to fraction form
    944.09/1,416.36 = 395.97/x
  3. Step 3: Cross multiply
    944.09x = 1,416.36 × 395.97
  4. Step 4: Simplify right side
    944.09x = 560,836.07
  5. Step 5: Solve for x
    x = 560,836.07/944.09
  6. Step 6: Final answer
    x = 594.05

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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.