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Finding the Fourth Proportional to 393,414.14, 590,120.67 and 156,922.88

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Solution

The fourth proportional to 393,414.14, 590,120.67 and 156,922.88 is: 235,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,414.14 : 590,120.67 = 156,922.88 : x
  2. Step 2: Convert to fraction form
    393,414.14/590,120.67 = 156,922.88/x
  3. Step 3: Cross multiply
    393,414.14x = 590,120.67 × 156,922.88
  4. Step 4: Simplify right side
    393,414.14x = 92,603,435,083.93
  5. Step 5: Solve for x
    x = 92,603,435,083.93/393,414.14
  6. Step 6: Final answer
    x = 235,384.10

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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.