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Finding the Fourth Proportional to 4,486.42, 6,728.64 and 1,199.26

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Solution

The fourth proportional to 4,486.42, 6,728.64 and 1,199.26 is: 1,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.42 : 6,728.64 = 1,199.26 : x
  2. Step 2: Convert to fraction form
    4,486.42/6,728.64 = 1,199.26/x
  3. Step 3: Cross multiply
    4,486.42x = 6,728.64 × 1,199.26
  4. Step 4: Simplify right side
    4,486.42x = 8,069,388.81
  5. Step 5: Solve for x
    x = 8,069,388.81/4,486.42
  6. Step 6: Final answer
    x = 1,798.63

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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.