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Finding the Fourth Proportional to 431,815.75, 595,713.17 and 250,422.55

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Solution

The fourth proportional to 431,815.75, 595,713.17 and 250,422.55 is: 345,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,815.75 : 595,713.17 = 250,422.55 : x
  2. Step 2: Convert to fraction form
    431,815.75/595,713.17 = 250,422.55/x
  3. Step 3: Cross multiply
    431,815.75x = 595,713.17 × 250,422.55
  4. Step 4: Simplify right side
    431,815.75x = 149,180,010,722.32
  5. Step 5: Solve for x
    x = 149,180,010,722.32/431,815.75
  6. Step 6: Final answer
    x = 345,471.45

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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.