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Finding the Fourth Proportional to 455,033.38, 627,945.34 and 251,084.14

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Solution

The fourth proportional to 455,033.38, 627,945.34 and 251,084.14 is: 346,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,033.38 : 627,945.34 = 251,084.14 : x
  2. Step 2: Convert to fraction form
    455,033.38/627,945.34 = 251,084.14/x
  3. Step 3: Cross multiply
    455,033.38x = 627,945.34 × 251,084.14
  4. Step 4: Simplify right side
    455,033.38x = 157,667,115,660.91
  5. Step 5: Solve for x
    x = 157,667,115,660.91/455,033.38
  6. Step 6: Final answer
    x = 346,495.71

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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.