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Finding the Fourth Proportional to 368,542.08, 552,142.44 and 255,984.48

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Solution

The fourth proportional to 368,542.08, 552,142.44 and 255,984.48 is: 383,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,542.08 : 552,142.44 = 255,984.48 : x
  2. Step 2: Convert to fraction form
    368,542.08/552,142.44 = 255,984.48/x
  3. Step 3: Cross multiply
    368,542.08x = 552,142.44 × 255,984.48
  4. Step 4: Simplify right side
    368,542.08x = 141,339,895,389.33
  5. Step 5: Solve for x
    x = 141,339,895,389.33/368,542.08
  6. Step 6: Final answer
    x = 383,510.87

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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.