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Finding the Fourth Proportional to 665,764.86, 998,654.58 and 192,454.32

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Solution

The fourth proportional to 665,764.86, 998,654.58 and 192,454.32 is: 288,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,764.86 : 998,654.58 = 192,454.32 : x
  2. Step 2: Convert to fraction form
    665,764.86/998,654.58 = 192,454.32/x
  3. Step 3: Cross multiply
    665,764.86x = 998,654.58 × 192,454.32
  4. Step 4: Simplify right side
    665,764.86x = 192,195,388,108.79
  5. Step 5: Solve for x
    x = 192,195,388,108.79/665,764.86
  6. Step 6: Final answer
    x = 288,683.59

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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.