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Finding the Fourth Proportional to 436,636.80, 654,571.20 and 295,939.20

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Solution

The fourth proportional to 436,636.80, 654,571.20 and 295,939.20 is: 443,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,636.80 : 654,571.20 = 295,939.20 : x
  2. Step 2: Convert to fraction form
    436,636.80/654,571.20 = 295,939.20/x
  3. Step 3: Cross multiply
    436,636.80x = 654,571.20 × 295,939.20
  4. Step 4: Simplify right side
    436,636.80x = 193,713,277,271.04
  5. Step 5: Solve for x
    x = 193,713,277,271.04/436,636.80
  6. Step 6: Final answer
    x = 443,648.54

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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.