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Finding the Fourth Proportional to 383,157.44, 528,757.26 and 213,391.56

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Solution

The fourth proportional to 383,157.44, 528,757.26 and 213,391.56 is: 294,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,157.44 : 528,757.26 = 213,391.56 : x
  2. Step 2: Convert to fraction form
    383,157.44/528,757.26 = 213,391.56/x
  3. Step 3: Cross multiply
    383,157.44x = 528,757.26 × 213,391.56
  4. Step 4: Simplify right side
    383,157.44x = 112,832,336,572.73
  5. Step 5: Solve for x
    x = 112,832,336,572.73/383,157.44
  6. Step 6: Final answer
    x = 294,480.35

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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.