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Finding the Fourth Proportional to 368,004.80, 552,007.20 and 255,447.20

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Solution

The fourth proportional to 368,004.80, 552,007.20 and 255,447.20 is: 383,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,004.80 : 552,007.20 = 255,447.20 : x
  2. Step 2: Convert to fraction form
    368,004.80/552,007.20 = 255,447.20/x
  3. Step 3: Cross multiply
    368,004.80x = 552,007.20 × 255,447.20
  4. Step 4: Simplify right side
    368,004.80x = 141,008,693,619.84
  5. Step 5: Solve for x
    x = 141,008,693,619.84/368,004.80
  6. Step 6: Final answer
    x = 383,170.80

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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.