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Finding the Fourth Proportional to 3,494.81, 5,242.52 and 897.75

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Solution

The fourth proportional to 3,494.81, 5,242.52 and 897.75 is: 1,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.81 : 5,242.52 = 897.75 : x
  2. Step 2: Convert to fraction form
    3,494.81/5,242.52 = 897.75/x
  3. Step 3: Cross multiply
    3,494.81x = 5,242.52 × 897.75
  4. Step 4: Simplify right side
    3,494.81x = 4,706,474.57
  5. Step 5: Solve for x
    x = 4,706,474.57/3,494.81
  6. Step 6: Final answer
    x = 1,346.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.