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Finding the Fourth Proportional to 483,784.32, 667,636.80 and 292,832.64

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Solution

The fourth proportional to 483,784.32, 667,636.80 and 292,832.64 is: 404,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,784.32 : 667,636.80 = 292,832.64 : x
  2. Step 2: Convert to fraction form
    483,784.32/667,636.80 = 292,832.64/x
  3. Step 3: Cross multiply
    483,784.32x = 667,636.80 × 292,832.64
  4. Step 4: Simplify right side
    483,784.32x = 195,505,846,705.15
  5. Step 5: Solve for x
    x = 195,505,846,705.15/483,784.32
  6. Step 6: Final answer
    x = 404,117.78

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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.