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Finding the Fourth Proportional to 479,620.95, 661,876.26 and 264,760.52

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Solution

The fourth proportional to 479,620.95, 661,876.26 and 264,760.52 is: 365,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,620.95 : 661,876.26 = 264,760.52 : x
  2. Step 2: Convert to fraction form
    479,620.95/661,876.26 = 264,760.52/x
  3. Step 3: Cross multiply
    479,620.95x = 661,876.26 × 264,760.52
  4. Step 4: Simplify right side
    479,620.95x = 175,238,699,463.87
  5. Step 5: Solve for x
    x = 175,238,699,463.87/479,620.95
  6. Step 6: Final answer
    x = 365,369.15

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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.