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Finding the Fourth Proportional to 300,803.67, 415,297.82 and 193,560.08

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Solution

The fourth proportional to 300,803.67, 415,297.82 and 193,560.08 is: 267,234.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,803.67 : 415,297.82 = 193,560.08 : x
  2. Step 2: Convert to fraction form
    300,803.67/415,297.82 = 193,560.08/x
  3. Step 3: Cross multiply
    300,803.67x = 415,297.82 × 193,560.08
  4. Step 4: Simplify right side
    300,803.67x = 80,385,076,218.74
  5. Step 5: Solve for x
    x = 80,385,076,218.74/300,803.67
  6. Step 6: Final answer
    x = 267,234.36

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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.