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Finding the Fourth Proportional to 481,082.94, 721,240.47 and 228,236.58

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Solution

The fourth proportional to 481,082.94, 721,240.47 and 228,236.58 is: 342,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,082.94 : 721,240.47 = 228,236.58 : x
  2. Step 2: Convert to fraction form
    481,082.94/721,240.47 = 228,236.58/x
  3. Step 3: Cross multiply
    481,082.94x = 721,240.47 × 228,236.58
  4. Step 4: Simplify right side
    481,082.94x = 164,613,458,230.39
  5. Step 5: Solve for x
    x = 164,613,458,230.39/481,082.94
  6. Step 6: Final answer
    x = 342,172.72

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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.