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Finding the Fourth Proportional to 297,715.80, 446,573.70 and 269,722.20

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Solution

The fourth proportional to 297,715.80, 446,573.70 and 269,722.20 is: 404,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,715.80 : 446,573.70 = 269,722.20 : x
  2. Step 2: Convert to fraction form
    297,715.80/446,573.70 = 269,722.20/x
  3. Step 3: Cross multiply
    297,715.80x = 446,573.70 × 269,722.20
  4. Step 4: Simplify right side
    297,715.80x = 120,450,840,826.14
  5. Step 5: Solve for x
    x = 120,450,840,826.14/297,715.80
  6. Step 6: Final answer
    x = 404,583.30

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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.