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Finding the Fourth Proportional to 1,194.57, 1,790.24 and 617.85

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Solution

The fourth proportional to 1,194.57, 1,790.24 and 617.85 is: 925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.57 : 1,790.24 = 617.85 : x
  2. Step 2: Convert to fraction form
    1,194.57/1,790.24 = 617.85/x
  3. Step 3: Cross multiply
    1,194.57x = 1,790.24 × 617.85
  4. Step 4: Simplify right side
    1,194.57x = 1,106,096.69
  5. Step 5: Solve for x
    x = 1,106,096.69/1,194.57
  6. Step 6: Final answer
    x = 925.94

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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.