Home / 910,162.56-1,365,505.92-279,168.96

Finding the Fourth Proportional to 910,162.56, 1,365,505.92 and 279,168.96

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Solution

The fourth proportional to 910,162.56, 1,365,505.92 and 279,168.96 is: 418,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,162.56 : 1,365,505.92 = 279,168.96 : x
  2. Step 2: Convert to fraction form
    910,162.56/1,365,505.92 = 279,168.96/x
  3. Step 3: Cross multiply
    910,162.56x = 1,365,505.92 × 279,168.96
  4. Step 4: Simplify right side
    910,162.56x = 381,206,867,560.24
  5. Step 5: Solve for x
    x = 381,206,867,560.24/910,162.56
  6. Step 6: Final answer
    x = 418,833.83

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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.