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Finding the Fourth Proportional to 367,991.80, 551,987.70 and 367,991.80

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Solution

The fourth proportional to 367,991.80, 551,987.70 and 367,991.80 is: 551,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,991.80 : 551,987.70 = 367,991.80 : x
  2. Step 2: Convert to fraction form
    367,991.80/551,987.70 = 367,991.80/x
  3. Step 3: Cross multiply
    367,991.80x = 551,987.70 × 367,991.80
  4. Step 4: Simplify right side
    367,991.80x = 203,126,947,300.86
  5. Step 5: Solve for x
    x = 203,126,947,300.86/367,991.80
  6. Step 6: Final answer
    x = 551,987.70

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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.