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Finding the Fourth Proportional to 469,288.43, 647,614.12 and 265,379.39

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Solution

The fourth proportional to 469,288.43, 647,614.12 and 265,379.39 is: 366,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,288.43 : 647,614.12 = 265,379.39 : x
  2. Step 2: Convert to fraction form
    469,288.43/647,614.12 = 265,379.39/x
  3. Step 3: Cross multiply
    469,288.43x = 647,614.12 × 265,379.39
  4. Step 4: Simplify right side
    469,288.43x = 171,863,435,556.02
  5. Step 5: Solve for x
    x = 171,863,435,556.02/469,288.43
  6. Step 6: Final answer
    x = 366,221.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.