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Finding the Fourth Proportional to 1,571.75, 2,357.67 and 461.24

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Solution

The fourth proportional to 1,571.75, 2,357.67 and 461.24 is: 691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.75 : 2,357.67 = 461.24 : x
  2. Step 2: Convert to fraction form
    1,571.75/2,357.67 = 461.24/x
  3. Step 3: Cross multiply
    1,571.75x = 2,357.67 × 461.24
  4. Step 4: Simplify right side
    1,571.75x = 1,087,451.71
  5. Step 5: Solve for x
    x = 1,087,451.71/1,571.75
  6. Step 6: Final answer
    x = 691.87

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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.