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Finding the Fourth Proportional to 1,044.56, 1,567.11 and 395.48

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Solution

The fourth proportional to 1,044.56, 1,567.11 and 395.48 is: 593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.56 : 1,567.11 = 395.48 : x
  2. Step 2: Convert to fraction form
    1,044.56/1,567.11 = 395.48/x
  3. Step 3: Cross multiply
    1,044.56x = 1,567.11 × 395.48
  4. Step 4: Simplify right side
    1,044.56x = 619,766.06
  5. Step 5: Solve for x
    x = 619,766.06/1,044.56
  6. Step 6: Final answer
    x = 593.33

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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.