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Finding the Fourth Proportional to 582,079.78, 873,119.90 and 261,857.61

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Solution

The fourth proportional to 582,079.78, 873,119.90 and 261,857.61 is: 392,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,079.78 : 873,119.90 = 261,857.61 : x
  2. Step 2: Convert to fraction form
    582,079.78/873,119.90 = 261,857.61/x
  3. Step 3: Cross multiply
    582,079.78x = 873,119.90 × 261,857.61
  4. Step 4: Simplify right side
    582,079.78x = 228,633,090,257.44
  5. Step 5: Solve for x
    x = 228,633,090,257.44/582,079.78
  6. Step 6: Final answer
    x = 392,786.52

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Similar ratio
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1.5x scale

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.