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Finding the Fourth Proportional to 323,548.41, 446,311.20 and 202,479.45

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Solution

The fourth proportional to 323,548.41, 446,311.20 and 202,479.45 is: 279,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,548.41 : 446,311.20 = 202,479.45 : x
  2. Step 2: Convert to fraction form
    323,548.41/446,311.20 = 202,479.45/x
  3. Step 3: Cross multiply
    323,548.41x = 446,311.20 × 202,479.45
  4. Step 4: Simplify right side
    323,548.41x = 90,368,846,304.84
  5. Step 5: Solve for x
    x = 90,368,846,304.84/323,548.41
  6. Step 6: Final answer
    x = 279,305.49

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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.