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Finding the Fourth Proportional to 387,793.34, 581,376.23 and 174,404.98

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Solution

The fourth proportional to 387,793.34, 581,376.23 and 174,404.98 is: 261,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,793.34 : 581,376.23 = 174,404.98 : x
  2. Step 2: Convert to fraction form
    387,793.34/581,376.23 = 174,404.98/x
  3. Step 3: Cross multiply
    387,793.34x = 581,376.23 × 174,404.98
  4. Step 4: Simplify right side
    387,793.34x = 101,394,905,986.72
  5. Step 5: Solve for x
    x = 101,394,905,986.72/387,793.34
  6. Step 6: Final answer
    x = 261,466.34

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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.