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Finding the Fourth Proportional to 368,008.20, 551,429.10 and 273,529.80

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Solution

The fourth proportional to 368,008.20, 551,429.10 and 273,529.80 is: 409,861.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,008.20 : 551,429.10 = 273,529.80 : x
  2. Step 2: Convert to fraction form
    368,008.20/551,429.10 = 273,529.80/x
  3. Step 3: Cross multiply
    368,008.20x = 551,429.10 × 273,529.80
  4. Step 4: Simplify right side
    368,008.20x = 150,832,291,437.18
  5. Step 5: Solve for x
    x = 150,832,291,437.18/368,008.20
  6. Step 6: Final answer
    x = 409,861.22

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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.