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Finding the Fourth Proportional to 500,800.83, 691,105.76 and 271,357.94

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Solution

The fourth proportional to 500,800.83, 691,105.76 and 271,357.94 is: 374,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,800.83 : 691,105.76 = 271,357.94 : x
  2. Step 2: Convert to fraction form
    500,800.83/691,105.76 = 271,357.94/x
  3. Step 3: Cross multiply
    500,800.83x = 691,105.76 × 271,357.94
  4. Step 4: Simplify right side
    500,800.83x = 187,537,035,355.73
  5. Step 5: Solve for x
    x = 187,537,035,355.73/500,800.83
  6. Step 6: Final answer
    x = 374,474.29

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1.5x scale

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.