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Finding the Fourth Proportional to 217,797.96, 326,515.44 and 189,648.84

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Solution

The fourth proportional to 217,797.96, 326,515.44 and 189,648.84 is: 284,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,797.96 : 326,515.44 = 189,648.84 : x
  2. Step 2: Convert to fraction form
    217,797.96/326,515.44 = 189,648.84/x
  3. Step 3: Cross multiply
    217,797.96x = 326,515.44 × 189,648.84
  4. Step 4: Simplify right side
    217,797.96x = 61,923,274,438.09
  5. Step 5: Solve for x
    x = 61,923,274,438.09/217,797.96
  6. Step 6: Final answer
    x = 284,315.22

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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.