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Finding the Fourth Proportional to 436,369.80, 654,554.70 and 226,072.20

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Solution

The fourth proportional to 436,369.80, 654,554.70 and 226,072.20 is: 339,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,369.80 : 654,554.70 = 226,072.20 : x
  2. Step 2: Convert to fraction form
    436,369.80/654,554.70 = 226,072.20/x
  3. Step 3: Cross multiply
    436,369.80x = 654,554.70 × 226,072.20
  4. Step 4: Simplify right side
    436,369.80x = 147,976,621,049.34
  5. Step 5: Solve for x
    x = 147,976,621,049.34/436,369.80
  6. Step 6: Final answer
    x = 339,108.30

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1.5x scale

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.