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Finding the Fourth Proportional to 395,998.40, 593,997.60 and 337,095.20

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Solution

The fourth proportional to 395,998.40, 593,997.60 and 337,095.20 is: 505,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,998.40 : 593,997.60 = 337,095.20 : x
  2. Step 2: Convert to fraction form
    395,998.40/593,997.60 = 337,095.20/x
  3. Step 3: Cross multiply
    395,998.40x = 593,997.60 × 337,095.20
  4. Step 4: Simplify right side
    395,998.40x = 200,233,739,771.52
  5. Step 5: Solve for x
    x = 200,233,739,771.52/395,998.40
  6. Step 6: Final answer
    x = 505,642.80

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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.