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Finding the Fourth Proportional to 654,164.56, 981,246.84 and 204,889.15

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Solution

The fourth proportional to 654,164.56, 981,246.84 and 204,889.15 is: 307,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,164.56 : 981,246.84 = 204,889.15 : x
  2. Step 2: Convert to fraction form
    654,164.56/981,246.84 = 204,889.15/x
  3. Step 3: Cross multiply
    654,164.56x = 981,246.84 × 204,889.15
  4. Step 4: Simplify right side
    654,164.56x = 201,046,830,987.79
  5. Step 5: Solve for x
    x = 201,046,830,987.79/654,164.56
  6. Step 6: Final answer
    x = 307,333.73

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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.