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Finding the Fourth Proportional to 996.17, 1,374.75 and 554.06

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Solution

The fourth proportional to 996.17, 1,374.75 and 554.06 is: 764.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.17 : 1,374.75 = 554.06 : x
  2. Step 2: Convert to fraction form
    996.17/1,374.75 = 554.06/x
  3. Step 3: Cross multiply
    996.17x = 1,374.75 × 554.06
  4. Step 4: Simplify right side
    996.17x = 761,697.42
  5. Step 5: Solve for x
    x = 761,697.42/996.17
  6. Step 6: Final answer
    x = 764.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.