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Finding the Fourth Proportional to 627,760.39, 866,291.24 and 355,853.42

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Solution

The fourth proportional to 627,760.39, 866,291.24 and 355,853.42 is: 491,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,760.39 : 866,291.24 = 355,853.42 : x
  2. Step 2: Convert to fraction form
    627,760.39/866,291.24 = 355,853.42/x
  3. Step 3: Cross multiply
    627,760.39x = 866,291.24 × 355,853.42
  4. Step 4: Simplify right side
    627,760.39x = 308,272,700,470.04
  5. Step 5: Solve for x
    x = 308,272,700,470.04/627,760.39
  6. Step 6: Final answer
    x = 491,067.46

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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.