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Finding the Fourth Proportional to 469,415.54, 647,793.61 and 254,555.54

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Solution

The fourth proportional to 469,415.54, 647,793.61 and 254,555.54 is: 351,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,415.54 : 647,793.61 = 254,555.54 : x
  2. Step 2: Convert to fraction form
    469,415.54/647,793.61 = 254,555.54/x
  3. Step 3: Cross multiply
    469,415.54x = 647,793.61 × 254,555.54
  4. Step 4: Simplify right side
    469,415.54x = 164,899,452,202.10
  5. Step 5: Solve for x
    x = 164,899,452,202.10/469,415.54
  6. Step 6: Final answer
    x = 351,286.74

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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.