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Finding the Fourth Proportional to 479,661.53, 661,915.55 and 264,796.97

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Solution

The fourth proportional to 479,661.53, 661,915.55 and 264,796.97 is: 365,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,661.53 : 661,915.55 = 264,796.97 : x
  2. Step 2: Convert to fraction form
    479,661.53/661,915.55 = 264,796.97/x
  3. Step 3: Cross multiply
    479,661.53x = 661,915.55 × 264,796.97
  4. Step 4: Simplify right side
    479,661.53x = 175,273,229,388.30
  5. Step 5: Solve for x
    x = 175,273,229,388.30/479,661.53
  6. Step 6: Final answer
    x = 365,410.23

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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.