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Finding the Fourth Proportional to 1,060.90, 1,591.35 and 627.75

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Solution

The fourth proportional to 1,060.90, 1,591.35 and 627.75 is: 941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.90 : 1,591.35 = 627.75 : x
  2. Step 2: Convert to fraction form
    1,060.90/1,591.35 = 627.75/x
  3. Step 3: Cross multiply
    1,060.90x = 1,591.35 × 627.75
  4. Step 4: Simplify right side
    1,060.90x = 998,967.61
  5. Step 5: Solve for x
    x = 998,967.61/1,060.90
  6. Step 6: Final answer
    x = 941.63

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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.