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Finding the Fourth Proportional to 368,269.20, 552,403.80 and 228,301.20

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Solution

The fourth proportional to 368,269.20, 552,403.80 and 228,301.20 is: 342,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,269.20 : 552,403.80 = 228,301.20 : x
  2. Step 2: Convert to fraction form
    368,269.20/552,403.80 = 228,301.20/x
  3. Step 3: Cross multiply
    368,269.20x = 552,403.80 × 228,301.20
  4. Step 4: Simplify right side
    368,269.20x = 126,114,450,424.56
  5. Step 5: Solve for x
    x = 126,114,450,424.56/368,269.20
  6. Step 6: Final answer
    x = 342,451.80

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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.