Home / 654,345.24-981,517.38-211,113.24

Finding the Fourth Proportional to 654,345.24, 981,517.38 and 211,113.24

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Solution

The fourth proportional to 654,345.24, 981,517.38 and 211,113.24 is: 316,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,345.24 : 981,517.38 = 211,113.24 : x
  2. Step 2: Convert to fraction form
    654,345.24/981,517.38 = 211,113.24/x
  3. Step 3: Cross multiply
    654,345.24x = 981,517.38 × 211,113.24
  4. Step 4: Simplify right side
    654,345.24x = 207,211,314,208.11
  5. Step 5: Solve for x
    x = 207,211,314,208.11/654,345.24
  6. Step 6: Final answer
    x = 316,669.71

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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.