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Finding the Fourth Proportional to 468,517.88, 646,553.76 and 253,657.91

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Solution

The fourth proportional to 468,517.88, 646,553.76 and 253,657.91 is: 350,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,517.88 : 646,553.76 = 253,657.91 : x
  2. Step 2: Convert to fraction form
    468,517.88/646,553.76 = 253,657.91/x
  3. Step 3: Cross multiply
    468,517.88x = 646,553.76 × 253,657.91
  4. Step 4: Simplify right side
    468,517.88x = 164,003,475,464.24
  5. Step 5: Solve for x
    x = 164,003,475,464.24/468,517.88
  6. Step 6: Final answer
    x = 350,047.42

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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.