Home / 654,121.60-981,182.40-204,877.60

Finding the Fourth Proportional to 654,121.60, 981,182.40 and 204,877.60

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Solution

The fourth proportional to 654,121.60, 981,182.40 and 204,877.60 is: 307,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,121.60 : 981,182.40 = 204,877.60 : x
  2. Step 2: Convert to fraction form
    654,121.60/981,182.40 = 204,877.60/x
  3. Step 3: Cross multiply
    654,121.60x = 981,182.40 × 204,877.60
  4. Step 4: Simplify right side
    654,121.60x = 201,022,295,274.24
  5. Step 5: Solve for x
    x = 201,022,295,274.24/654,121.60
  6. Step 6: Final answer
    x = 307,316.40

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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.