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Finding the Fourth Proportional to 613,221.44, 919,980.26 and 192,497.32

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Solution

The fourth proportional to 613,221.44, 919,980.26 and 192,497.32 is: 288,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,221.44 : 919,980.26 = 192,497.32 : x
  2. Step 2: Convert to fraction form
    613,221.44/919,980.26 = 192,497.32/x
  3. Step 3: Cross multiply
    613,221.44x = 919,980.26 × 192,497.32
  4. Step 4: Simplify right side
    613,221.44x = 177,093,734,502.90
  5. Step 5: Solve for x
    x = 177,093,734,502.90/613,221.44
  6. Step 6: Final answer
    x = 288,792.47

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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.