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Finding the Fourth Proportional to 469,288.92, 647,614.81 and 265,379.88

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Solution

The fourth proportional to 469,288.92, 647,614.81 and 265,379.88 is: 366,222.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,288.92 : 647,614.81 = 265,379.88 : x
  2. Step 2: Convert to fraction form
    469,288.92/647,614.81 = 265,379.88/x
  3. Step 3: Cross multiply
    469,288.92x = 647,614.81 × 265,379.88
  4. Step 4: Simplify right side
    469,288.92x = 171,863,940,564.02
  5. Step 5: Solve for x
    x = 171,863,940,564.02/469,288.92
  6. Step 6: Final answer
    x = 366,222.03

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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.