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Finding the Fourth Proportional to 403,649.44, 605,473.80 and 190,367.60

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Solution

The fourth proportional to 403,649.44, 605,473.80 and 190,367.60 is: 285,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,649.44 : 605,473.80 = 190,367.60 : x
  2. Step 2: Convert to fraction form
    403,649.44/605,473.80 = 190,367.60/x
  3. Step 3: Cross multiply
    403,649.44x = 605,473.80 × 190,367.60
  4. Step 4: Simplify right side
    403,649.44x = 115,262,594,168.88
  5. Step 5: Solve for x
    x = 115,262,594,168.88/403,649.44
  6. Step 6: Final answer
    x = 285,551.23

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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.