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Finding the Fourth Proportional to 479,325.39, 661,708.73 and 298,095.71

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Solution

The fourth proportional to 479,325.39, 661,708.73 and 298,095.71 is: 411,521.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,325.39 : 661,708.73 = 298,095.71 : x
  2. Step 2: Convert to fraction form
    479,325.39/661,708.73 = 298,095.71/x
  3. Step 3: Cross multiply
    479,325.39x = 661,708.73 × 298,095.71
  4. Step 4: Simplify right side
    479,325.39x = 197,252,531,119.24
  5. Step 5: Solve for x
    x = 197,252,531,119.24/479,325.39
  6. Step 6: Final answer
    x = 411,521.14

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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.