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Finding the Fourth Proportional to 573,431.37, 860,240.09 and 189,065.43

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Solution

The fourth proportional to 573,431.37, 860,240.09 and 189,065.43 is: 283,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,431.37 : 860,240.09 = 189,065.43 : x
  2. Step 2: Convert to fraction form
    573,431.37/860,240.09 = 189,065.43/x
  3. Step 3: Cross multiply
    573,431.37x = 860,240.09 × 189,065.43
  4. Step 4: Simplify right side
    573,431.37x = 162,641,664,879.43
  5. Step 5: Solve for x
    x = 162,641,664,879.43/573,431.37
  6. Step 6: Final answer
    x = 283,628.83

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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.