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Finding the Fourth Proportional to 318,201.01, 439,113.83 and 236,892.80

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Solution

The fourth proportional to 318,201.01, 439,113.83 and 236,892.80 is: 326,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,201.01 : 439,113.83 = 236,892.80 : x
  2. Step 2: Convert to fraction form
    318,201.01/439,113.83 = 236,892.80/x
  3. Step 3: Cross multiply
    318,201.01x = 439,113.83 × 236,892.80
  4. Step 4: Simplify right side
    318,201.01x = 104,022,904,620.75
  5. Step 5: Solve for x
    x = 104,022,904,620.75/318,201.01
  6. Step 6: Final answer
    x = 326,909.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.