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Finding the Fourth Proportional to 1,275.94, 1,914.72 and 941.41

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Solution

The fourth proportional to 1,275.94, 1,914.72 and 941.41 is: 1,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275.94 : 1,914.72 = 941.41 : x
  2. Step 2: Convert to fraction form
    1,275.94/1,914.72 = 941.41/x
  3. Step 3: Cross multiply
    1,275.94x = 1,914.72 × 941.41
  4. Step 4: Simplify right side
    1,275.94x = 1,802,536.56
  5. Step 5: Solve for x
    x = 1,802,536.56/1,275.94
  6. Step 6: Final answer
    x = 1,412.71

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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.