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Finding the Fourth Proportional to 312,023.53, 430,455.69 and 182,896.54

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Solution

The fourth proportional to 312,023.53, 430,455.69 and 182,896.54 is: 252,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,023.53 : 430,455.69 = 182,896.54 : x
  2. Step 2: Convert to fraction form
    312,023.53/430,455.69 = 182,896.54/x
  3. Step 3: Cross multiply
    312,023.53x = 430,455.69 × 182,896.54
  4. Step 4: Simplify right side
    312,023.53x = 78,728,856,324.31
  5. Step 5: Solve for x
    x = 78,728,856,324.31/312,023.53
  6. Step 6: Final answer
    x = 252,317.05

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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.