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Finding the Fourth Proportional to 393,213.52, 589,858.62 and 156,500.92

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Solution

The fourth proportional to 393,213.52, 589,858.62 and 156,500.92 is: 234,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,213.52 : 589,858.62 = 156,500.92 : x
  2. Step 2: Convert to fraction form
    393,213.52/589,858.62 = 156,500.92/x
  3. Step 3: Cross multiply
    393,213.52x = 589,858.62 × 156,500.92
  4. Step 4: Simplify right side
    393,213.52x = 92,313,416,699.93
  5. Step 5: Solve for x
    x = 92,313,416,699.93/393,213.52
  6. Step 6: Final answer
    x = 234,766.64

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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.