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Finding the Fourth Proportional to 362,407.70, 543,611.55 and 267,929.30

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Solution

The fourth proportional to 362,407.70, 543,611.55 and 267,929.30 is: 401,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,407.70 : 543,611.55 = 267,929.30 : x
  2. Step 2: Convert to fraction form
    362,407.70/543,611.55 = 267,929.30/x
  3. Step 3: Cross multiply
    362,407.70x = 543,611.55 × 267,929.30
  4. Step 4: Simplify right side
    362,407.70x = 145,649,462,063.42
  5. Step 5: Solve for x
    x = 145,649,462,063.42/362,407.70
  6. Step 6: Final answer
    x = 401,893.95

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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.