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Finding the Fourth Proportional to 317,349.44, 475,389.12 and 190,919.60

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Solution

The fourth proportional to 317,349.44, 475,389.12 and 190,919.60 is: 285,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,349.44 : 475,389.12 = 190,919.60 : x
  2. Step 2: Convert to fraction form
    317,349.44/475,389.12 = 190,919.60/x
  3. Step 3: Cross multiply
    317,349.44x = 475,389.12 × 190,919.60
  4. Step 4: Simplify right side
    317,349.44x = 90,761,100,634.75
  5. Step 5: Solve for x
    x = 90,761,100,634.75/317,349.44
  6. Step 6: Final answer
    x = 285,997.36

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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.