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Finding the Fourth Proportional to 264,756.72, 397,093.20 and 220,064.88

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Solution

The fourth proportional to 264,756.72, 397,093.20 and 220,064.88 is: 330,062.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,756.72 : 397,093.20 = 220,064.88 : x
  2. Step 2: Convert to fraction form
    264,756.72/397,093.20 = 220,064.88/x
  3. Step 3: Cross multiply
    264,756.72x = 397,093.20 × 220,064.88
  4. Step 4: Simplify right side
    264,756.72x = 87,386,267,406.82
  5. Step 5: Solve for x
    x = 87,386,267,406.82/264,756.72
  6. Step 6: Final answer
    x = 330,062.51

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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.