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Finding the Fourth Proportional to 476,997.76, 715,601.89 and 264,076.30

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Solution

The fourth proportional to 476,997.76, 715,601.89 and 264,076.30 is: 396,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,997.76 : 715,601.89 = 264,076.30 : x
  2. Step 2: Convert to fraction form
    476,997.76/715,601.89 = 264,076.30/x
  3. Step 3: Cross multiply
    476,997.76x = 715,601.89 × 264,076.30
  4. Step 4: Simplify right side
    476,997.76x = 188,973,500,608.81
  5. Step 5: Solve for x
    x = 188,973,500,608.81/476,997.76
  6. Step 6: Final answer
    x = 396,172.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.