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Finding the Fourth Proportional to 458,317.73, 686,773.71 and 191,932.62

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Solution

The fourth proportional to 458,317.73, 686,773.71 and 191,932.62 is: 287,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,317.73 : 686,773.71 = 191,932.62 : x
  2. Step 2: Convert to fraction form
    458,317.73/686,773.71 = 191,932.62/x
  3. Step 3: Cross multiply
    458,317.73x = 686,773.71 × 191,932.62
  4. Step 4: Simplify right side
    458,317.73x = 131,814,277,507.42
  5. Step 5: Solve for x
    x = 131,814,277,507.42/458,317.73
  6. Step 6: Final answer
    x = 287,604.58

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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.