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Finding the Fourth Proportional to 500,793.84, 691,092 and 274,434.48

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Solution

The fourth proportional to 500,793.84, 691,092 and 274,434.48 is: 378,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,793.84 : 691,092 = 274,434.48 : x
  2. Step 2: Convert to fraction form
    500,793.84/691,092 = 274,434.48/x
  3. Step 3: Cross multiply
    500,793.84x = 691,092 × 274,434.48
  4. Step 4: Simplify right side
    500,793.84x = 189,659,473,652.16
  5. Step 5: Solve for x
    x = 189,659,473,652.16/500,793.84
  6. Step 6: Final answer
    x = 378,717.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.