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Finding the Fourth Proportional to 367,630.70, 551,446.05 and 274,318.70

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Solution

The fourth proportional to 367,630.70, 551,446.05 and 274,318.70 is: 411,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,630.70 : 551,446.05 = 274,318.70 : x
  2. Step 2: Convert to fraction form
    367,630.70/551,446.05 = 274,318.70/x
  3. Step 3: Cross multiply
    367,630.70x = 551,446.05 × 274,318.70
  4. Step 4: Simplify right side
    367,630.70x = 151,271,963,556.14
  5. Step 5: Solve for x
    x = 151,271,963,556.14/367,630.70
  6. Step 6: Final answer
    x = 411,478.05

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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.