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Finding the Fourth Proportional to 496,727.01, 685,464.24 and 281,854.26

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Solution

The fourth proportional to 496,727.01, 685,464.24 and 281,854.26 is: 388,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,727.01 : 685,464.24 = 281,854.26 : x
  2. Step 2: Convert to fraction form
    496,727.01/685,464.24 = 281,854.26/x
  3. Step 3: Cross multiply
    496,727.01x = 685,464.24 × 281,854.26
  4. Step 4: Simplify right side
    496,727.01x = 193,201,016,121.66
  5. Step 5: Solve for x
    x = 193,201,016,121.66/496,727.01
  6. Step 6: Final answer
    x = 388,948.08

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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.