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Finding the Fourth Proportional to 325,474.20, 488,124.90 and 100,834.20

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Solution

The fourth proportional to 325,474.20, 488,124.90 and 100,834.20 is: 151,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,474.20 : 488,124.90 = 100,834.20 : x
  2. Step 2: Convert to fraction form
    325,474.20/488,124.90 = 100,834.20/x
  3. Step 3: Cross multiply
    325,474.20x = 488,124.90 × 100,834.20
  4. Step 4: Simplify right side
    325,474.20x = 49,219,683,791.58
  5. Step 5: Solve for x
    x = 49,219,683,791.58/325,474.20
  6. Step 6: Final answer
    x = 151,224.53

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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.