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Finding the Fourth Proportional to 1,193.90, 1,790.32 and 462.96

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Solution

The fourth proportional to 1,193.90, 1,790.32 and 462.96 is: 694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.90 : 1,790.32 = 462.96 : x
  2. Step 2: Convert to fraction form
    1,193.90/1,790.32 = 462.96/x
  3. Step 3: Cross multiply
    1,193.90x = 1,790.32 × 462.96
  4. Step 4: Simplify right side
    1,193.90x = 828,846.55
  5. Step 5: Solve for x
    x = 828,846.55/1,193.90
  6. Step 6: Final answer
    x = 694.23

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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.