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Finding the Fourth Proportional to 919,147, 1,268,422.86 and 537,494.44

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Solution

The fourth proportional to 919,147, 1,268,422.86 and 537,494.44 is: 741,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,147 : 1,268,422.86 = 537,494.44 : x
  2. Step 2: Convert to fraction form
    919,147/1,268,422.86 = 537,494.44/x
  3. Step 3: Cross multiply
    919,147x = 1,268,422.86 × 537,494.44
  4. Step 4: Simplify right side
    919,147x = 681,770,234,818.90
  5. Step 5: Solve for x
    x = 681,770,234,818.90/919,147
  6. Step 6: Final answer
    x = 741,742.33

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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.