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Finding the Fourth Proportional to 629,942.40, 944,913.60 and 256,233.60

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Solution

The fourth proportional to 629,942.40, 944,913.60 and 256,233.60 is: 384,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,942.40 : 944,913.60 = 256,233.60 : x
  2. Step 2: Convert to fraction form
    629,942.40/944,913.60 = 256,233.60/x
  3. Step 3: Cross multiply
    629,942.40x = 944,913.60 × 256,233.60
  4. Step 4: Simplify right side
    629,942.40x = 242,118,613,416.96
  5. Step 5: Solve for x
    x = 242,118,613,416.96/629,942.40
  6. Step 6: Final answer
    x = 384,350.40

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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.