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Finding the Fourth Proportional to 1,193.92, 1,790.64 and 964.14

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Solution

The fourth proportional to 1,193.92, 1,790.64 and 964.14 is: 1,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.92 : 1,790.64 = 964.14 : x
  2. Step 2: Convert to fraction form
    1,193.92/1,790.64 = 964.14/x
  3. Step 3: Cross multiply
    1,193.92x = 1,790.64 × 964.14
  4. Step 4: Simplify right side
    1,193.92x = 1,726,427.65
  5. Step 5: Solve for x
    x = 1,726,427.65/1,193.92
  6. Step 6: Final answer
    x = 1,446.02

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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.