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Finding the Fourth Proportional to 500,798.72, 691,104.64 and 271,355.95

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Solution

The fourth proportional to 500,798.72, 691,104.64 and 271,355.95 is: 374,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,798.72 : 691,104.64 = 271,355.95 : x
  2. Step 2: Convert to fraction form
    500,798.72/691,104.64 = 271,355.95/x
  3. Step 3: Cross multiply
    500,798.72x = 691,104.64 × 271,355.95
  4. Step 4: Simplify right side
    500,798.72x = 187,535,353,884.16
  5. Step 5: Solve for x
    x = 187,535,353,884.16/500,798.72
  6. Step 6: Final answer
    x = 374,472.51

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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.