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Finding the Fourth Proportional to 469,163.69, 647,447.28 and 254,304.61

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Solution

The fourth proportional to 469,163.69, 647,447.28 and 254,304.61 is: 350,941.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,163.69 : 647,447.28 = 254,304.61 : x
  2. Step 2: Convert to fraction form
    469,163.69/647,447.28 = 254,304.61/x
  3. Step 3: Cross multiply
    469,163.69x = 647,447.28 × 254,304.61
  4. Step 4: Simplify right side
    469,163.69x = 164,648,825,463.70
  5. Step 5: Solve for x
    x = 164,648,825,463.70/469,163.69
  6. Step 6: Final answer
    x = 350,941.11

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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.