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Finding the Fourth Proportional to 326,937.60, 451,209.60 and 199,612.80

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Solution

The fourth proportional to 326,937.60, 451,209.60 and 199,612.80 is: 275,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,937.60 : 451,209.60 = 199,612.80 : x
  2. Step 2: Convert to fraction form
    326,937.60/451,209.60 = 199,612.80/x
  3. Step 3: Cross multiply
    326,937.60x = 451,209.60 × 199,612.80
  4. Step 4: Simplify right side
    326,937.60x = 90,067,211,642.88
  5. Step 5: Solve for x
    x = 90,067,211,642.88/326,937.60
  6. Step 6: Final answer
    x = 275,487.47

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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.