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Finding the Fourth Proportional to 353,593.20, 487,958.63 and 192,449.43

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Solution

The fourth proportional to 353,593.20, 487,958.63 and 192,449.43 is: 265,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,593.20 : 487,958.63 = 192,449.43 : x
  2. Step 2: Convert to fraction form
    353,593.20/487,958.63 = 192,449.43/x
  3. Step 3: Cross multiply
    353,593.20x = 487,958.63 × 192,449.43
  4. Step 4: Simplify right side
    353,593.20x = 93,907,359,244.83
  5. Step 5: Solve for x
    x = 93,907,359,244.83/353,593.20
  6. Step 6: Final answer
    x = 265,580.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.