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Finding the Fourth Proportional to 4,439, 6,658.62 and 1,361

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Solution

The fourth proportional to 4,439, 6,658.62 and 1,361 is: 2,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439 : 6,658.62 = 1,361 : x
  2. Step 2: Convert to fraction form
    4,439/6,658.62 = 1,361/x
  3. Step 3: Cross multiply
    4,439x = 6,658.62 × 1,361
  4. Step 4: Simplify right side
    4,439x = 9,062,381.82
  5. Step 5: Solve for x
    x = 9,062,381.82/4,439
  6. Step 6: Final answer
    x = 2,041.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.