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Finding the Fourth Proportional to 1,241.68, 1,860.94 and 624.44

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Solution

The fourth proportional to 1,241.68, 1,860.94 and 624.44 is: 935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.68 : 1,860.94 = 624.44 : x
  2. Step 2: Convert to fraction form
    1,241.68/1,860.94 = 624.44/x
  3. Step 3: Cross multiply
    1,241.68x = 1,860.94 × 624.44
  4. Step 4: Simplify right side
    1,241.68x = 1,162,045.37
  5. Step 5: Solve for x
    x = 1,162,045.37/1,241.68
  6. Step 6: Final answer
    x = 935.87

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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.