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Finding the Fourth Proportional to 367,008.55, 550,512.83 and 311,021.35

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Solution

The fourth proportional to 367,008.55, 550,512.83 and 311,021.35 is: 466,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,008.55 : 550,512.83 = 311,021.35 : x
  2. Step 2: Convert to fraction form
    367,008.55/550,512.83 = 311,021.35/x
  3. Step 3: Cross multiply
    367,008.55x = 550,512.83 × 311,021.35
  4. Step 4: Simplify right side
    367,008.55x = 171,221,243,578.92
  5. Step 5: Solve for x
    x = 171,221,243,578.92/367,008.55
  6. Step 6: Final answer
    x = 466,532.03

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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.