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Finding the Fourth Proportional to 609,069.88, 913,692.54 and 188,378.56

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Solution

The fourth proportional to 609,069.88, 913,692.54 and 188,378.56 is: 282,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,069.88 : 913,692.54 = 188,378.56 : x
  2. Step 2: Convert to fraction form
    609,069.88/913,692.54 = 188,378.56/x
  3. Step 3: Cross multiply
    609,069.88x = 913,692.54 × 188,378.56
  4. Step 4: Simplify right side
    609,069.88x = 172,120,084,967.94
  5. Step 5: Solve for x
    x = 172,120,084,967.94/609,069.88
  6. Step 6: Final answer
    x = 282,594.97

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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.