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Finding the Fourth Proportional to 479,661.51, 661,915.55 and 264,796.97

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Solution

The fourth proportional to 479,661.51, 661,915.55 and 264,796.97 is: 365,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,661.51 : 661,915.55 = 264,796.97 : x
  2. Step 2: Convert to fraction form
    479,661.51/661,915.55 = 264,796.97/x
  3. Step 3: Cross multiply
    479,661.51x = 661,915.55 × 264,796.97
  4. Step 4: Simplify right side
    479,661.51x = 175,273,230,711.90
  5. Step 5: Solve for x
    x = 175,273,230,711.90/479,661.51
  6. Step 6: Final answer
    x = 365,410.25

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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.