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Finding the Fourth Proportional to 1,410.99, 1,944.91 and 1,111.76

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Solution

The fourth proportional to 1,410.99, 1,944.91 and 1,111.76 is: 1,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.99 : 1,944.91 = 1,111.76 : x
  2. Step 2: Convert to fraction form
    1,410.99/1,944.91 = 1,111.76/x
  3. Step 3: Cross multiply
    1,410.99x = 1,944.91 × 1,111.76
  4. Step 4: Simplify right side
    1,410.99x = 2,162,273.14
  5. Step 5: Solve for x
    x = 2,162,273.14/1,410.99
  6. Step 6: Final answer
    x = 1,532.45

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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.