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Finding the Fourth Proportional to 436,861.20, 655,313.40 and 226,909.20

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Solution

The fourth proportional to 436,861.20, 655,313.40 and 226,909.20 is: 340,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,861.20 : 655,313.40 = 226,909.20 : x
  2. Step 2: Convert to fraction form
    436,861.20/655,313.40 = 226,909.20/x
  3. Step 3: Cross multiply
    436,861.20x = 655,313.40 × 226,909.20
  4. Step 4: Simplify right side
    436,861.20x = 148,696,639,343.28
  5. Step 5: Solve for x
    x = 148,696,639,343.28/436,861.20
  6. Step 6: Final answer
    x = 340,375.02

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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.