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Finding the Fourth Proportional to 590.52, 885.78 and 205.56

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Solution

The fourth proportional to 590.52, 885.78 and 205.56 is: 308.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.52 : 885.78 = 205.56 : x
  2. Step 2: Convert to fraction form
    590.52/885.78 = 205.56/x
  3. Step 3: Cross multiply
    590.52x = 885.78 × 205.56
  4. Step 4: Simplify right side
    590.52x = 182,080.94
  5. Step 5: Solve for x
    x = 182,080.94/590.52
  6. Step 6: Final answer
    x = 308.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.