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Finding the Fourth Proportional to 367,997.80, 551,996.70 and 308,511.40

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Solution

The fourth proportional to 367,997.80, 551,996.70 and 308,511.40 is: 462,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,997.80 : 551,996.70 = 308,511.40 : x
  2. Step 2: Convert to fraction form
    367,997.80/551,996.70 = 308,511.40/x
  3. Step 3: Cross multiply
    367,997.80x = 551,996.70 × 308,511.40
  4. Step 4: Simplify right side
    367,997.80x = 170,297,274,712.38
  5. Step 5: Solve for x
    x = 170,297,274,712.38/367,997.80
  6. Step 6: Final answer
    x = 462,767.10

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1.5x scale

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.