Home / 928,467.28-1,392,700.92-612,850.38

Finding the Fourth Proportional to 928,467.28, 1,392,700.92 and 612,850.38

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Solution

The fourth proportional to 928,467.28, 1,392,700.92 and 612,850.38 is: 919,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,467.28 : 1,392,700.92 = 612,850.38 : x
  2. Step 2: Convert to fraction form
    928,467.28/1,392,700.92 = 612,850.38/x
  3. Step 3: Cross multiply
    928,467.28x = 1,392,700.92 × 612,850.38
  4. Step 4: Simplify right side
    928,467.28x = 853,517,288,048.35
  5. Step 5: Solve for x
    x = 853,517,288,048.35/928,467.28
  6. Step 6: Final answer
    x = 919,275.57

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Double scale
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Similar ratio
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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.