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Finding the Fourth Proportional to 1,471.14, 2,029.89 and 947.10

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Solution

The fourth proportional to 1,471.14, 2,029.89 and 947.10 is: 1,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.14 : 2,029.89 = 947.10 : x
  2. Step 2: Convert to fraction form
    1,471.14/2,029.89 = 947.10/x
  3. Step 3: Cross multiply
    1,471.14x = 2,029.89 × 947.10
  4. Step 4: Simplify right side
    1,471.14x = 1,922,508.82
  5. Step 5: Solve for x
    x = 1,922,508.82/1,471.14
  6. Step 6: Final answer
    x = 1,306.82

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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.