Home / 928,474.28-1,392,711.44-612,857.36

Finding the Fourth Proportional to 928,474.28, 1,392,711.44 and 612,857.36

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Solution

The fourth proportional to 928,474.28, 1,392,711.44 and 612,857.36 is: 919,286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,474.28 : 1,392,711.44 = 612,857.36 : x
  2. Step 2: Convert to fraction form
    928,474.28/1,392,711.44 = 612,857.36/x
  3. Step 3: Cross multiply
    928,474.28x = 1,392,711.44 × 612,857.36
  4. Step 4: Simplify right side
    928,474.28x = 853,533,456,360.20
  5. Step 5: Solve for x
    x = 853,533,456,360.20/928,474.28
  6. Step 6: Final answer
    x = 919,286.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.