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Finding the Fourth Proportional to 1,061.91, 1,593.08 and 331.46

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Solution

The fourth proportional to 1,061.91, 1,593.08 and 331.46 is: 497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.91 : 1,593.08 = 331.46 : x
  2. Step 2: Convert to fraction form
    1,061.91/1,593.08 = 331.46/x
  3. Step 3: Cross multiply
    1,061.91x = 1,593.08 × 331.46
  4. Step 4: Simplify right side
    1,061.91x = 528,042.30
  5. Step 5: Solve for x
    x = 528,042.30/1,061.91
  6. Step 6: Final answer
    x = 497.26

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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.