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Finding the Fourth Proportional to 925.86, 1,390.54 and 794.36

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Solution

The fourth proportional to 925.86, 1,390.54 and 794.36 is: 1,193.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.86 : 1,390.54 = 794.36 : x
  2. Step 2: Convert to fraction form
    925.86/1,390.54 = 794.36/x
  3. Step 3: Cross multiply
    925.86x = 1,390.54 × 794.36
  4. Step 4: Simplify right side
    925.86x = 1,104,589.35
  5. Step 5: Solve for x
    x = 1,104,589.35/925.86
  6. Step 6: Final answer
    x = 1,193.04

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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.