Home / 1,538,879.86-2,123,588.23-850,516.12

Finding the Fourth Proportional to 1,538,879.86, 2,123,588.23 and 850,516.12

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Solution

The fourth proportional to 1,538,879.86, 2,123,588.23 and 850,516.12 is: 1,173,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,879.86 : 2,123,588.23 = 850,516.12 : x
  2. Step 2: Convert to fraction form
    1,538,879.86/2,123,588.23 = 850,516.12/x
  3. Step 3: Cross multiply
    1,538,879.86x = 2,123,588.23 × 850,516.12
  4. Step 4: Simplify right side
    1,538,879.86x = 1,806,146,021,857.27
  5. Step 5: Solve for x
    x = 1,806,146,021,857.27/1,538,879.86
  6. Step 6: Final answer
    x = 1,173,675.78

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Double scale
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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.