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Finding the Fourth Proportional to 703.44, 1,055.15 and 337.97

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Solution

The fourth proportional to 703.44, 1,055.15 and 337.97 is: 506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.44 : 1,055.15 = 337.97 : x
  2. Step 2: Convert to fraction form
    703.44/1,055.15 = 337.97/x
  3. Step 3: Cross multiply
    703.44x = 1,055.15 × 337.97
  4. Step 4: Simplify right side
    703.44x = 356,609.05
  5. Step 5: Solve for x
    x = 356,609.05/703.44
  6. Step 6: Final answer
    x = 506.95

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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.