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Finding the Fourth Proportional to 479,183.16, 717,718.71 and 396,080.77

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Solution

The fourth proportional to 479,183.16, 717,718.71 and 396,080.77 is: 593,248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,183.16 : 717,718.71 = 396,080.77 : x
  2. Step 2: Convert to fraction form
    479,183.16/717,718.71 = 396,080.77/x
  3. Step 3: Cross multiply
    479,183.16x = 717,718.71 × 396,080.77
  4. Step 4: Simplify right side
    479,183.16x = 284,274,580,301.38
  5. Step 5: Solve for x
    x = 284,274,580,301.38/479,183.16
  6. Step 6: Final answer
    x = 593,248.27

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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.