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Finding the Fourth Proportional to 479,192.64, 661,287.69 and 264,329.61

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Solution

The fourth proportional to 479,192.64, 661,287.69 and 264,329.61 is: 364,775.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,192.64 : 661,287.69 = 264,329.61 : x
  2. Step 2: Convert to fraction form
    479,192.64/661,287.69 = 264,329.61/x
  3. Step 3: Cross multiply
    479,192.64x = 661,287.69 × 264,329.61
  4. Step 4: Simplify right side
    479,192.64x = 174,797,917,195.50
  5. Step 5: Solve for x
    x = 174,797,917,195.50/479,192.64
  6. Step 6: Final answer
    x = 364,775.88

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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.