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Finding the Fourth Proportional to 338,568.39, 507,937.23 and 238,923.09

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Solution

The fourth proportional to 338,568.39, 507,937.23 and 238,923.09 is: 358,444.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,568.39 : 507,937.23 = 238,923.09 : x
  2. Step 2: Convert to fraction form
    338,568.39/507,937.23 = 238,923.09/x
  3. Step 3: Cross multiply
    338,568.39x = 507,937.23 × 238,923.09
  4. Step 4: Simplify right side
    338,568.39x = 121,357,932,517.64
  5. Step 5: Solve for x
    x = 121,357,932,517.64/338,568.39
  6. Step 6: Final answer
    x = 358,444.37

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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.