Home / 654,245.89-981,367.61-205,001.15

Finding the Fourth Proportional to 654,245.89, 981,367.61 and 205,001.15

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Solution

The fourth proportional to 654,245.89, 981,367.61 and 205,001.15 is: 307,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,245.89 : 981,367.61 = 205,001.15 : x
  2. Step 2: Convert to fraction form
    654,245.89/981,367.61 = 205,001.15/x
  3. Step 3: Cross multiply
    654,245.89x = 981,367.61 × 205,001.15
  4. Step 4: Simplify right side
    654,245.89x = 201,181,488,622.75
  5. Step 5: Solve for x
    x = 201,181,488,622.75/654,245.89
  6. Step 6: Final answer
    x = 307,501.34

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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.