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Finding the Fourth Proportional to 379,506.24, 568,078.32 and 238,969.68

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Solution

The fourth proportional to 379,506.24, 568,078.32 and 238,969.68 is: 357,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,506.24 : 568,078.32 = 238,969.68 : x
  2. Step 2: Convert to fraction form
    379,506.24/568,078.32 = 238,969.68/x
  3. Step 3: Cross multiply
    379,506.24x = 568,078.32 × 238,969.68
  4. Step 4: Simplify right side
    379,506.24x = 135,753,494,345.34
  5. Step 5: Solve for x
    x = 135,753,494,345.34/379,506.24
  6. Step 6: Final answer
    x = 357,710.84

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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.