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Finding the Fourth Proportional to 469,339.02, 647,687.23 and 254,478.73

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Solution

The fourth proportional to 469,339.02, 647,687.23 and 254,478.73 is: 351,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,339.02 : 647,687.23 = 254,478.73 : x
  2. Step 2: Convert to fraction form
    469,339.02/647,687.23 = 254,478.73/x
  3. Step 3: Cross multiply
    469,339.02x = 647,687.23 × 254,478.73
  4. Step 4: Simplify right side
    469,339.02x = 164,822,623,727.62
  5. Step 5: Solve for x
    x = 164,822,623,727.62/469,339.02
  6. Step 6: Final answer
    x = 351,180.31

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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.