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Finding the Fourth Proportional to 338,199.60, 507,321.26 and 113,550.96

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Solution

The fourth proportional to 338,199.60, 507,321.26 and 113,550.96 is: 170,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,199.60 : 507,321.26 = 113,550.96 : x
  2. Step 2: Convert to fraction form
    338,199.60/507,321.26 = 113,550.96/x
  3. Step 3: Cross multiply
    338,199.60x = 507,321.26 × 113,550.96
  4. Step 4: Simplify right side
    338,199.60x = 57,606,816,101.41
  5. Step 5: Solve for x
    x = 57,606,816,101.41/338,199.60
  6. Step 6: Final answer
    x = 170,333.78

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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.