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Finding the Fourth Proportional to 1,061.58, 1,592.22 and 331.14

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Solution

The fourth proportional to 1,061.58, 1,592.22 and 331.14 is: 496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.58 : 1,592.22 = 331.14 : x
  2. Step 2: Convert to fraction form
    1,061.58/1,592.22 = 331.14/x
  3. Step 3: Cross multiply
    1,061.58x = 1,592.22 × 331.14
  4. Step 4: Simplify right side
    1,061.58x = 527,247.73
  5. Step 5: Solve for x
    x = 527,247.73/1,061.58
  6. Step 6: Final answer
    x = 496.66

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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.