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Finding the Fourth Proportional to 492,776.55, 739,164.83 and 442,912.95

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Solution

The fourth proportional to 492,776.55, 739,164.83 and 442,912.95 is: 664,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,776.55 : 739,164.83 = 442,912.95 : x
  2. Step 2: Convert to fraction form
    492,776.55/739,164.83 = 442,912.95/x
  3. Step 3: Cross multiply
    492,776.55x = 739,164.83 × 442,912.95
  4. Step 4: Simplify right side
    492,776.55x = 327,385,673,176.98
  5. Step 5: Solve for x
    x = 327,385,673,176.98/492,776.55
  6. Step 6: Final answer
    x = 664,369.43

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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.