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Finding the Fourth Proportional to 1,068.50, 1,474.13 and 626.24

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Solution

The fourth proportional to 1,068.50, 1,474.13 and 626.24 is: 863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.50 : 1,474.13 = 626.24 : x
  2. Step 2: Convert to fraction form
    1,068.50/1,474.13 = 626.24/x
  3. Step 3: Cross multiply
    1,068.50x = 1,474.13 × 626.24
  4. Step 4: Simplify right side
    1,068.50x = 923,151.80
  5. Step 5: Solve for x
    x = 923,151.80/1,068.50
  6. Step 6: Final answer
    x = 863.97

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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.