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Finding the Fourth Proportional to 585,910.85, 808,563.31 and 344,203.61

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Solution

The fourth proportional to 585,910.85, 808,563.31 and 344,203.61 is: 475,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,910.85 : 808,563.31 = 344,203.61 : x
  2. Step 2: Convert to fraction form
    585,910.85/808,563.31 = 344,203.61/x
  3. Step 3: Cross multiply
    585,910.85x = 808,563.31 × 344,203.61
  4. Step 4: Simplify right side
    585,910.85x = 278,310,405,312.22
  5. Step 5: Solve for x
    x = 278,310,405,312.22/585,910.85
  6. Step 6: Final answer
    x = 475,004.70

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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.