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Finding the Fourth Proportional to 449,907.45, 675,031.62 and 270,118.43

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Solution

The fourth proportional to 449,907.45, 675,031.62 and 270,118.43 is: 405,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,907.45 : 675,031.62 = 270,118.43 : x
  2. Step 2: Convert to fraction form
    449,907.45/675,031.62 = 270,118.43/x
  3. Step 3: Cross multiply
    449,907.45x = 675,031.62 × 270,118.43
  4. Step 4: Simplify right side
    449,907.45x = 182,338,481,563.91
  5. Step 5: Solve for x
    x = 182,338,481,563.91/449,907.45
  6. Step 6: Final answer
    x = 405,279.98

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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.