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Finding the Fourth Proportional to 486,167.54, 729,329.07 and 205,687.22

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Solution

The fourth proportional to 486,167.54, 729,329.07 and 205,687.22 is: 308,563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,167.54 : 729,329.07 = 205,687.22 : x
  2. Step 2: Convert to fraction form
    486,167.54/729,329.07 = 205,687.22/x
  3. Step 3: Cross multiply
    486,167.54x = 729,329.07 × 205,687.22
  4. Step 4: Simplify right side
    486,167.54x = 150,013,665,226.84
  5. Step 5: Solve for x
    x = 150,013,665,226.84/486,167.54
  6. Step 6: Final answer
    x = 308,563.72

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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.