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Finding the Fourth Proportional to 394,401.60, 590,727.60 and 341,913.60

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Solution

The fourth proportional to 394,401.60, 590,727.60 and 341,913.60 is: 512,112.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,401.60 : 590,727.60 = 341,913.60 : x
  2. Step 2: Convert to fraction form
    394,401.60/590,727.60 = 341,913.60/x
  3. Step 3: Cross multiply
    394,401.60x = 590,727.60 × 341,913.60
  4. Step 4: Simplify right side
    394,401.60x = 201,977,800,335.36
  5. Step 5: Solve for x
    x = 201,977,800,335.36/394,401.60
  6. Step 6: Final answer
    x = 512,112.02

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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.