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Finding the Fourth Proportional to 629,701.80, 944,552.70 and 330,066.60

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Solution

The fourth proportional to 629,701.80, 944,552.70 and 330,066.60 is: 495,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,701.80 : 944,552.70 = 330,066.60 : x
  2. Step 2: Convert to fraction form
    629,701.80/944,552.70 = 330,066.60/x
  3. Step 3: Cross multiply
    629,701.80x = 944,552.70 × 330,066.60
  4. Step 4: Simplify right side
    629,701.80x = 311,765,298,209.82
  5. Step 5: Solve for x
    x = 311,765,298,209.82/629,701.80
  6. Step 6: Final answer
    x = 495,099.90

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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.