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Finding the Fourth Proportional to 468,959.87, 647,172.05 and 262,251.45

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Solution

The fourth proportional to 468,959.87, 647,172.05 and 262,251.45 is: 361,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,959.87 : 647,172.05 = 262,251.45 : x
  2. Step 2: Convert to fraction form
    468,959.87/647,172.05 = 262,251.45/x
  3. Step 3: Cross multiply
    468,959.87x = 647,172.05 × 262,251.45
  4. Step 4: Simplify right side
    468,959.87x = 169,721,807,200.72
  5. Step 5: Solve for x
    x = 169,721,807,200.72/468,959.87
  6. Step 6: Final answer
    x = 361,911.16

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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.