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Finding the Fourth Proportional to 325,462.68, 488,271.96 and 135,817.55

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Solution

The fourth proportional to 325,462.68, 488,271.96 and 135,817.55 is: 203,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,462.68 : 488,271.96 = 135,817.55 : x
  2. Step 2: Convert to fraction form
    325,462.68/488,271.96 = 135,817.55/x
  3. Step 3: Cross multiply
    325,462.68x = 488,271.96 × 135,817.55
  4. Step 4: Simplify right side
    325,462.68x = 66,315,902,561.58
  5. Step 5: Solve for x
    x = 66,315,902,561.58/325,462.68
  6. Step 6: Final answer
    x = 203,758.85

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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.