Home / 892,305.91-1,338,458.83-261,219.72

Finding the Fourth Proportional to 892,305.91, 1,338,458.83 and 261,219.72

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Solution

The fourth proportional to 892,305.91, 1,338,458.83 and 261,219.72 is: 391,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,305.91 : 1,338,458.83 = 261,219.72 : x
  2. Step 2: Convert to fraction form
    892,305.91/1,338,458.83 = 261,219.72/x
  3. Step 3: Cross multiply
    892,305.91x = 1,338,458.83 × 261,219.72
  4. Step 4: Simplify right side
    892,305.91x = 349,631,840,804.13
  5. Step 5: Solve for x
    x = 349,631,840,804.13/892,305.91
  6. Step 6: Final answer
    x = 391,829.57

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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.