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Finding the Fourth Proportional to 303,211.80, 454,161.60 and 269,969.40

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Solution

The fourth proportional to 303,211.80, 454,161.60 and 269,969.40 is: 404,369.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,211.80 : 454,161.60 = 269,969.40 : x
  2. Step 2: Convert to fraction form
    303,211.80/454,161.60 = 269,969.40/x
  3. Step 3: Cross multiply
    303,211.80x = 454,161.60 × 269,969.40
  4. Step 4: Simplify right side
    303,211.80x = 122,609,734,655.04
  5. Step 5: Solve for x
    x = 122,609,734,655.04/303,211.80
  6. Step 6: Final answer
    x = 404,369.93

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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.