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Finding the Fourth Proportional to 355,611.72, 533,470.62 and 130,954.88

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Solution

The fourth proportional to 355,611.72, 533,470.62 and 130,954.88 is: 196,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,611.72 : 533,470.62 = 130,954.88 : x
  2. Step 2: Convert to fraction form
    355,611.72/533,470.62 = 130,954.88/x
  3. Step 3: Cross multiply
    355,611.72x = 533,470.62 × 130,954.88
  4. Step 4: Simplify right side
    355,611.72x = 69,860,581,025.63
  5. Step 5: Solve for x
    x = 69,860,581,025.63/355,611.72
  6. Step 6: Final answer
    x = 196,451.85

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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.