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Finding the Fourth Proportional to 271,732.20, 407,598.30 and 209,524.20

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Solution

The fourth proportional to 271,732.20, 407,598.30 and 209,524.20 is: 314,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,732.20 : 407,598.30 = 209,524.20 : x
  2. Step 2: Convert to fraction form
    271,732.20/407,598.30 = 209,524.20/x
  3. Step 3: Cross multiply
    271,732.20x = 407,598.30 × 209,524.20
  4. Step 4: Simplify right side
    271,732.20x = 85,401,707,728.86
  5. Step 5: Solve for x
    x = 85,401,707,728.86/271,732.20
  6. Step 6: Final answer
    x = 314,286.30

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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.