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Finding the Fourth Proportional to 366,934.30, 550,401.45 and 330,192.70

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Solution

The fourth proportional to 366,934.30, 550,401.45 and 330,192.70 is: 495,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,934.30 : 550,401.45 = 330,192.70 : x
  2. Step 2: Convert to fraction form
    366,934.30/550,401.45 = 330,192.70/x
  3. Step 3: Cross multiply
    366,934.30x = 550,401.45 × 330,192.70
  4. Step 4: Simplify right side
    366,934.30x = 181,738,540,859.42
  5. Step 5: Solve for x
    x = 181,738,540,859.42/366,934.30
  6. Step 6: Final answer
    x = 495,289.05

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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.