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Finding the Fourth Proportional to 454,965.39, 627,854.42 and 251,016.30

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Solution

The fourth proportional to 454,965.39, 627,854.42 and 251,016.30 is: 346,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,965.39 : 627,854.42 = 251,016.30 : x
  2. Step 2: Convert to fraction form
    454,965.39/627,854.42 = 251,016.30/x
  3. Step 3: Cross multiply
    454,965.39x = 627,854.42 × 251,016.30
  4. Step 4: Simplify right side
    454,965.39x = 157,601,693,447.05
  5. Step 5: Solve for x
    x = 157,601,693,447.05/454,965.39
  6. Step 6: Final answer
    x = 346,403.70

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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.