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Finding the Fourth Proportional to 496,660.80, 745,472.34 and 469,687.80

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Solution

The fourth proportional to 496,660.80, 745,472.34 and 469,687.80 is: 704,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,660.80 : 745,472.34 = 469,687.80 : x
  2. Step 2: Convert to fraction form
    496,660.80/745,472.34 = 469,687.80/x
  3. Step 3: Cross multiply
    496,660.80x = 745,472.34 × 469,687.80
  4. Step 4: Simplify right side
    496,660.80x = 350,139,263,335.45
  5. Step 5: Solve for x
    x = 350,139,263,335.45/496,660.80
  6. Step 6: Final answer
    x = 704,986.71

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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.