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Finding the Fourth Proportional to 436,638.80, 654,574.20 and 295,941.20

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Solution

The fourth proportional to 436,638.80, 654,574.20 and 295,941.20 is: 443,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,638.80 : 654,574.20 = 295,941.20 : x
  2. Step 2: Convert to fraction form
    436,638.80/654,574.20 = 295,941.20/x
  3. Step 3: Cross multiply
    436,638.80x = 654,574.20 × 295,941.20
  4. Step 4: Simplify right side
    436,638.80x = 193,715,474,237.04
  5. Step 5: Solve for x
    x = 193,715,474,237.04/436,638.80
  6. Step 6: Final answer
    x = 443,651.54

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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.