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Finding the Fourth Proportional to 607,740.20, 911,523.90 and 187,058.60

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Solution

The fourth proportional to 607,740.20, 911,523.90 and 187,058.60 is: 280,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,740.20 : 911,523.90 = 187,058.60 : x
  2. Step 2: Convert to fraction form
    607,740.20/911,523.90 = 187,058.60/x
  3. Step 3: Cross multiply
    607,740.20x = 911,523.90 × 187,058.60
  4. Step 4: Simplify right side
    607,740.20x = 170,508,384,600.54
  5. Step 5: Solve for x
    x = 170,508,384,600.54/607,740.20
  6. Step 6: Final answer
    x = 280,561.31

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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.