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Finding the Fourth Proportional to 454,405.74, 627,107.31 and 250,456.38

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Solution

The fourth proportional to 454,405.74, 627,107.31 and 250,456.38 is: 345,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,405.74 : 627,107.31 = 250,456.38 : x
  2. Step 2: Convert to fraction form
    454,405.74/627,107.31 = 250,456.38/x
  3. Step 3: Cross multiply
    454,405.74x = 627,107.31 × 250,456.38
  4. Step 4: Simplify right side
    454,405.74x = 157,063,026,734.14
  5. Step 5: Solve for x
    x = 157,063,026,734.14/454,405.74
  6. Step 6: Final answer
    x = 345,644.90

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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.