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Finding the Fourth Proportional to 944.57, 1,417.05 and 396.43

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Solution

The fourth proportional to 944.57, 1,417.05 and 396.43 is: 594.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.57 : 1,417.05 = 396.43 : x
  2. Step 2: Convert to fraction form
    944.57/1,417.05 = 396.43/x
  3. Step 3: Cross multiply
    944.57x = 1,417.05 × 396.43
  4. Step 4: Simplify right side
    944.57x = 561,761.13
  5. Step 5: Solve for x
    x = 561,761.13/944.57
  6. Step 6: Final answer
    x = 594.73

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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.