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Finding the Fourth Proportional to 481,649.60, 664,676.49 and 266,803.58

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Solution

The fourth proportional to 481,649.60, 664,676.49 and 266,803.58 is: 368,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,649.60 : 664,676.49 = 266,803.58 : x
  2. Step 2: Convert to fraction form
    481,649.60/664,676.49 = 266,803.58/x
  3. Step 3: Cross multiply
    481,649.60x = 664,676.49 × 266,803.58
  4. Step 4: Simplify right side
    481,649.60x = 177,338,067,073.83
  5. Step 5: Solve for x
    x = 177,338,067,073.83/481,649.60
  6. Step 6: Final answer
    x = 368,188.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.