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Finding the Fourth Proportional to 313,997.20, 471,024.60 and 103,635.60

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Solution

The fourth proportional to 313,997.20, 471,024.60 and 103,635.60 is: 155,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,997.20 : 471,024.60 = 103,635.60 : x
  2. Step 2: Convert to fraction form
    313,997.20/471,024.60 = 103,635.60/x
  3. Step 3: Cross multiply
    313,997.20x = 471,024.60 × 103,635.60
  4. Step 4: Simplify right side
    313,997.20x = 48,814,917,035.76
  5. Step 5: Solve for x
    x = 48,814,917,035.76/313,997.20
  6. Step 6: Final answer
    x = 155,462.91

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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.