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Finding the Fourth Proportional to 1,711.53, 2,567.30 and 541.38

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Solution

The fourth proportional to 1,711.53, 2,567.30 and 541.38 is: 812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.53 : 2,567.30 = 541.38 : x
  2. Step 2: Convert to fraction form
    1,711.53/2,567.30 = 541.38/x
  3. Step 3: Cross multiply
    1,711.53x = 2,567.30 × 541.38
  4. Step 4: Simplify right side
    1,711.53x = 1,389,891.79
  5. Step 5: Solve for x
    x = 1,389,891.79/1,711.53
  6. Step 6: Final answer
    x = 812.08

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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.