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Finding the Fourth Proportional to 324,438.72, 447,648.84 and 197,106.72

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Solution

The fourth proportional to 324,438.72, 447,648.84 and 197,106.72 is: 271,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,438.72 : 447,648.84 = 197,106.72 : x
  2. Step 2: Convert to fraction form
    324,438.72/447,648.84 = 197,106.72/x
  3. Step 3: Cross multiply
    324,438.72x = 447,648.84 × 197,106.72
  4. Step 4: Simplify right side
    324,438.72x = 88,234,594,564.20
  5. Step 5: Solve for x
    x = 88,234,594,564.20/324,438.72
  6. Step 6: Final answer
    x = 271,960.74

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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.