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Finding the Fourth Proportional to 576,563.67, 864,143.64 and 408,131.73

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Solution

The fourth proportional to 576,563.67, 864,143.64 and 408,131.73 is: 611,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,563.67 : 864,143.64 = 408,131.73 : x
  2. Step 2: Convert to fraction form
    576,563.67/864,143.64 = 408,131.73/x
  3. Step 3: Cross multiply
    576,563.67x = 864,143.64 × 408,131.73
  4. Step 4: Simplify right side
    576,563.67x = 352,684,438,761.70
  5. Step 5: Solve for x
    x = 352,684,438,761.70/576,563.67
  6. Step 6: Final answer
    x = 611,700.77

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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.