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Finding the Fourth Proportional to 603,785.01, 905,621.98 and 204,380.13

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Solution

The fourth proportional to 603,785.01, 905,621.98 and 204,380.13 is: 306,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,785.01 : 905,621.98 = 204,380.13 : x
  2. Step 2: Convert to fraction form
    603,785.01/905,621.98 = 204,380.13/x
  3. Step 3: Cross multiply
    603,785.01x = 905,621.98 × 204,380.13
  4. Step 4: Simplify right side
    603,785.01x = 185,091,132,453.25
  5. Step 5: Solve for x
    x = 185,091,132,453.25/603,785.01
  6. Step 6: Final answer
    x = 306,551.39

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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.