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Finding the Fourth Proportional to 1,444.87, 2,167.32 and 349.24

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Solution

The fourth proportional to 1,444.87, 2,167.32 and 349.24 is: 523.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.87 : 2,167.32 = 349.24 : x
  2. Step 2: Convert to fraction form
    1,444.87/2,167.32 = 349.24/x
  3. Step 3: Cross multiply
    1,444.87x = 2,167.32 × 349.24
  4. Step 4: Simplify right side
    1,444.87x = 756,914.84
  5. Step 5: Solve for x
    x = 756,914.84/1,444.87
  6. Step 6: Final answer
    x = 523.86

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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.