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Finding the Fourth Proportional to 539.37, 808.97 and 192.66

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Solution

The fourth proportional to 539.37, 808.97 and 192.66 is: 288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.37 : 808.97 = 192.66 : x
  2. Step 2: Convert to fraction form
    539.37/808.97 = 192.66/x
  3. Step 3: Cross multiply
    539.37x = 808.97 × 192.66
  4. Step 4: Simplify right side
    539.37x = 155,852.16
  5. Step 5: Solve for x
    x = 155,852.16/539.37
  6. Step 6: Final answer
    x = 288.95

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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.