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Finding the Fourth Proportional to 1,043.14, 1,558.05 and 944.15

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Solution

The fourth proportional to 1,043.14, 1,558.05 and 944.15 is: 1,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.14 : 1,558.05 = 944.15 : x
  2. Step 2: Convert to fraction form
    1,043.14/1,558.05 = 944.15/x
  3. Step 3: Cross multiply
    1,043.14x = 1,558.05 × 944.15
  4. Step 4: Simplify right side
    1,043.14x = 1,471,035.73
  5. Step 5: Solve for x
    x = 1,471,035.73/1,043.14
  6. Step 6: Final answer
    x = 1,410.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.