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Finding the Fourth Proportional to 297,321.40, 444,815.70 and 269,327.80

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Solution

The fourth proportional to 297,321.40, 444,815.70 and 269,327.80 is: 402,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,321.40 : 444,815.70 = 269,327.80 : x
  2. Step 2: Convert to fraction form
    297,321.40/444,815.70 = 269,327.80/x
  3. Step 3: Cross multiply
    297,321.40x = 444,815.70 × 269,327.80
  4. Step 4: Simplify right side
    297,321.40x = 119,801,233,886.46
  5. Step 5: Solve for x
    x = 119,801,233,886.46/297,321.40
  6. Step 6: Final answer
    x = 402,935.12

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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.