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Finding the Fourth Proportional to 479,325.14, 661,708.39 and 298,095.46

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Solution

The fourth proportional to 479,325.14, 661,708.39 and 298,095.46 is: 411,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,325.14 : 661,708.39 = 298,095.46 : x
  2. Step 2: Convert to fraction form
    479,325.14/661,708.39 = 298,095.46/x
  3. Step 3: Cross multiply
    479,325.14x = 661,708.39 × 298,095.46
  4. Step 4: Simplify right side
    479,325.14x = 197,252,263,594.37
  5. Step 5: Solve for x
    x = 197,252,263,594.37/479,325.14
  6. Step 6: Final answer
    x = 411,520.80

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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.