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Finding the Fourth Proportional to 1,193.91, 1,790.23 and 462.75

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Solution

The fourth proportional to 1,193.91, 1,790.23 and 462.75 is: 693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.91 : 1,790.23 = 462.75 : x
  2. Step 2: Convert to fraction form
    1,193.91/1,790.23 = 462.75/x
  3. Step 3: Cross multiply
    1,193.91x = 1,790.23 × 462.75
  4. Step 4: Simplify right side
    1,193.91x = 828,428.93
  5. Step 5: Solve for x
    x = 828,428.93/1,193.91
  6. Step 6: Final answer
    x = 693.88

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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.