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Finding the Fourth Proportional to 3,199.44, 4,415.60 and 1,802.44

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Solution

The fourth proportional to 3,199.44, 4,415.60 and 1,802.44 is: 2,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.44 : 4,415.60 = 1,802.44 : x
  2. Step 2: Convert to fraction form
    3,199.44/4,415.60 = 1,802.44/x
  3. Step 3: Cross multiply
    3,199.44x = 4,415.60 × 1,802.44
  4. Step 4: Simplify right side
    3,199.44x = 7,958,854.06
  5. Step 5: Solve for x
    x = 7,958,854.06/3,199.44
  6. Step 6: Final answer
    x = 2,487.58

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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.