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Finding the Fourth Proportional to 468,947.88, 647,147.18 and 254,093.76

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Solution

The fourth proportional to 468,947.88, 647,147.18 and 254,093.76 is: 350,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,947.88 : 647,147.18 = 254,093.76 : x
  2. Step 2: Convert to fraction form
    468,947.88/647,147.18 = 254,093.76/x
  3. Step 3: Cross multiply
    468,947.88x = 647,147.18 × 254,093.76
  4. Step 4: Simplify right side
    468,947.88x = 164,436,060,239.60
  5. Step 5: Solve for x
    x = 164,436,060,239.60/468,947.88
  6. Step 6: Final answer
    x = 350,648.90

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1.5x scale

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.