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Finding the Fourth Proportional to 1,061.97, 1,592.97 and 331.55

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Solution

The fourth proportional to 1,061.97, 1,592.97 and 331.55 is: 497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.97 : 1,592.97 = 331.55 : x
  2. Step 2: Convert to fraction form
    1,061.97/1,592.97 = 331.55/x
  3. Step 3: Cross multiply
    1,061.97x = 1,592.97 × 331.55
  4. Step 4: Simplify right side
    1,061.97x = 528,147.55
  5. Step 5: Solve for x
    x = 528,147.55/1,061.97
  6. Step 6: Final answer
    x = 497.33

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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.