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Finding the Fourth Proportional to 437,611.96, 603,890.22 and 276,553.40

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Solution

The fourth proportional to 437,611.96, 603,890.22 and 276,553.40 is: 381,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,611.96 : 603,890.22 = 276,553.40 : x
  2. Step 2: Convert to fraction form
    437,611.96/603,890.22 = 276,553.40/x
  3. Step 3: Cross multiply
    437,611.96x = 603,890.22 × 276,553.40
  4. Step 4: Simplify right side
    437,611.96x = 167,007,893,567.75
  5. Step 5: Solve for x
    x = 167,007,893,567.75/437,611.96
  6. Step 6: Final answer
    x = 381,634.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.