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Finding the Fourth Proportional to 269,415.40, 404,900.70 and 264,749.80

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Solution

The fourth proportional to 269,415.40, 404,900.70 and 264,749.80 is: 397,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,415.40 : 404,900.70 = 264,749.80 : x
  2. Step 2: Convert to fraction form
    269,415.40/404,900.70 = 264,749.80/x
  3. Step 3: Cross multiply
    269,415.40x = 404,900.70 × 264,749.80
  4. Step 4: Simplify right side
    269,415.40x = 107,197,379,344.86
  5. Step 5: Solve for x
    x = 107,197,379,344.86/269,415.40
  6. Step 6: Final answer
    x = 397,888.83

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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.