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Finding the Fourth Proportional to 383,385.05, 529,082.00 and 220,055.56

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Solution

The fourth proportional to 383,385.05, 529,082.00 and 220,055.56 is: 303,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,385.05 : 529,082.00 = 220,055.56 : x
  2. Step 2: Convert to fraction form
    383,385.05/529,082.00 = 220,055.56/x
  3. Step 3: Cross multiply
    383,385.05x = 529,082.00 × 220,055.56
  4. Step 4: Simplify right side
    383,385.05x = 116,427,436,305.10
  5. Step 5: Solve for x
    x = 116,427,436,305.10/383,385.05
  6. Step 6: Final answer
    x = 303,682.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.