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Finding the Fourth Proportional to 4,393.59, 6,580.80 and 2,198.49

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Solution

The fourth proportional to 4,393.59, 6,580.80 and 2,198.49 is: 3,292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,393.59 : 6,580.80 = 2,198.49 : x
  2. Step 2: Convert to fraction form
    4,393.59/6,580.80 = 2,198.49/x
  3. Step 3: Cross multiply
    4,393.59x = 6,580.80 × 2,198.49
  4. Step 4: Simplify right side
    4,393.59x = 14,467,822.99
  5. Step 5: Solve for x
    x = 14,467,822.99/4,393.59
  6. Step 6: Final answer
    x = 3,292.94

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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.