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Finding the Fourth Proportional to 332,672.21, 459,087.19 and 189,432.25

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Solution

The fourth proportional to 332,672.21, 459,087.19 and 189,432.25 is: 261,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,672.21 : 459,087.19 = 189,432.25 : x
  2. Step 2: Convert to fraction form
    332,672.21/459,087.19 = 189,432.25/x
  3. Step 3: Cross multiply
    332,672.21x = 459,087.19 × 189,432.25
  4. Step 4: Simplify right side
    332,672.21x = 86,965,919,437.73
  5. Step 5: Solve for x
    x = 86,965,919,437.73/332,672.21
  6. Step 6: Final answer
    x = 261,416.25

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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.