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Finding the Fourth Proportional to 267,849.72, 402,033.78 and 196,990.20

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Solution

The fourth proportional to 267,849.72, 402,033.78 and 196,990.20 is: 295,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,849.72 : 402,033.78 = 196,990.20 : x
  2. Step 2: Convert to fraction form
    267,849.72/402,033.78 = 196,990.20/x
  3. Step 3: Cross multiply
    267,849.72x = 402,033.78 × 196,990.20
  4. Step 4: Simplify right side
    267,849.72x = 79,196,714,728.96
  5. Step 5: Solve for x
    x = 79,196,714,728.96/267,849.72
  6. Step 6: Final answer
    x = 295,675.93

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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.