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Finding the Fourth Proportional to 654,496.80, 981,745.20 and 233,786.40

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Solution

The fourth proportional to 654,496.80, 981,745.20 and 233,786.40 is: 350,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,496.80 : 981,745.20 = 233,786.40 : x
  2. Step 2: Convert to fraction form
    654,496.80/981,745.20 = 233,786.40/x
  3. Step 3: Cross multiply
    654,496.80x = 981,745.20 × 233,786.40
  4. Step 4: Simplify right side
    654,496.80x = 229,518,676,025.28
  5. Step 5: Solve for x
    x = 229,518,676,025.28/654,496.80
  6. Step 6: Final answer
    x = 350,679.60

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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.