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Finding the Fourth Proportional to 447,714.40, 671,571.60 and 443,048.80

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Solution

The fourth proportional to 447,714.40, 671,571.60 and 443,048.80 is: 664,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,714.40 : 671,571.60 = 443,048.80 : x
  2. Step 2: Convert to fraction form
    447,714.40/671,571.60 = 443,048.80/x
  3. Step 3: Cross multiply
    447,714.40x = 671,571.60 × 443,048.80
  4. Step 4: Simplify right side
    447,714.40x = 297,538,991,494.08
  5. Step 5: Solve for x
    x = 297,538,991,494.08/447,714.40
  6. Step 6: Final answer
    x = 664,573.20

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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.