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Finding the Fourth Proportional to 613,220.44, 919,978.76 and 192,496.32

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Solution

The fourth proportional to 613,220.44, 919,978.76 and 192,496.32 is: 288,790.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,220.44 : 919,978.76 = 192,496.32 : x
  2. Step 2: Convert to fraction form
    613,220.44/919,978.76 = 192,496.32/x
  3. Step 3: Cross multiply
    613,220.44x = 919,978.76 × 192,496.32
  4. Step 4: Simplify right side
    613,220.44x = 177,092,525,778.16
  5. Step 5: Solve for x
    x = 177,092,525,778.16/613,220.44
  6. Step 6: Final answer
    x = 288,790.97

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1.5x scale

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.