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Finding the Fourth Proportional to 368,485.85, 551,843.02 and 210,234.53

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Solution

The fourth proportional to 368,485.85, 551,843.02 and 210,234.53 is: 314,846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,485.85 : 551,843.02 = 210,234.53 : x
  2. Step 2: Convert to fraction form
    368,485.85/551,843.02 = 210,234.53/x
  3. Step 3: Cross multiply
    368,485.85x = 551,843.02 × 210,234.53
  4. Step 4: Simplify right side
    368,485.85x = 116,016,459,585.88
  5. Step 5: Solve for x
    x = 116,016,459,585.88/368,485.85
  6. Step 6: Final answer
    x = 314,846.44

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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.