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Finding the Fourth Proportional to 359.76, 539.28 and 177

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Solution

The fourth proportional to 359.76, 539.28 and 177 is: 265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.76 : 539.28 = 177 : x
  2. Step 2: Convert to fraction form
    359.76/539.28 = 177/x
  3. Step 3: Cross multiply
    359.76x = 539.28 × 177
  4. Step 4: Simplify right side
    359.76x = 95,452.56
  5. Step 5: Solve for x
    x = 95,452.56/359.76
  6. Step 6: Final answer
    x = 265.32

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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.