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Finding the Fourth Proportional to 479,794.16, 662,135.64 and 298,613.36

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Solution

The fourth proportional to 479,794.16, 662,135.64 and 298,613.36 is: 412,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,794.16 : 662,135.64 = 298,613.36 : x
  2. Step 2: Convert to fraction form
    479,794.16/662,135.64 = 298,613.36/x
  3. Step 3: Cross multiply
    479,794.16x = 662,135.64 × 298,613.36
  4. Step 4: Simplify right side
    479,794.16x = 197,722,548,236.15
  5. Step 5: Solve for x
    x = 197,722,548,236.15/479,794.16
  6. Step 6: Final answer
    x = 412,098.70

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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.