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Finding the Fourth Proportional to 326,131.80, 488,954.70 and 168,473.40

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Solution

The fourth proportional to 326,131.80, 488,954.70 and 168,473.40 is: 252,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,131.80 : 488,954.70 = 168,473.40 : x
  2. Step 2: Convert to fraction form
    326,131.80/488,954.70 = 168,473.40/x
  3. Step 3: Cross multiply
    326,131.80x = 488,954.70 × 168,473.40
  4. Step 4: Simplify right side
    326,131.80x = 82,375,860,754.98
  5. Step 5: Solve for x
    x = 82,375,860,754.98/326,131.80
  6. Step 6: Final answer
    x = 252,584.57

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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.