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Finding the Fourth Proportional to 585,081.43, 877,578.40 and 211,104.43

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Solution

The fourth proportional to 585,081.43, 877,578.40 and 211,104.43 is: 316,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,081.43 : 877,578.40 = 211,104.43 : x
  2. Step 2: Convert to fraction form
    585,081.43/877,578.40 = 211,104.43/x
  3. Step 3: Cross multiply
    585,081.43x = 877,578.40 × 211,104.43
  4. Step 4: Simplify right side
    585,081.43x = 185,260,685,982.25
  5. Step 5: Solve for x
    x = 185,260,685,982.25/585,081.43
  6. Step 6: Final answer
    x = 316,640.86

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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.