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Finding the Fourth Proportional to 332,912.82, 459,438.09 and 189,645.42

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Solution

The fourth proportional to 332,912.82, 459,438.09 and 189,645.42 is: 261,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,912.82 : 459,438.09 = 189,645.42 : x
  2. Step 2: Convert to fraction form
    332,912.82/459,438.09 = 189,645.42/x
  3. Step 3: Cross multiply
    332,912.82x = 459,438.09 × 189,645.42
  4. Step 4: Simplify right side
    332,912.82x = 87,130,329,542.05
  5. Step 5: Solve for x
    x = 87,130,329,542.05/332,912.82
  6. Step 6: Final answer
    x = 261,721.16

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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.