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Finding the Fourth Proportional to 1,474.64, 2,035.02 and 845.16

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Solution

The fourth proportional to 1,474.64, 2,035.02 and 845.16 is: 1,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.64 : 2,035.02 = 845.16 : x
  2. Step 2: Convert to fraction form
    1,474.64/2,035.02 = 845.16/x
  3. Step 3: Cross multiply
    1,474.64x = 2,035.02 × 845.16
  4. Step 4: Simplify right side
    1,474.64x = 1,719,917.50
  5. Step 5: Solve for x
    x = 1,719,917.50/1,474.64
  6. Step 6: Final answer
    x = 1,166.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.