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Finding the Fourth Proportional to 344,708.91, 475,664.13 and 215,622.45

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Solution

The fourth proportional to 344,708.91, 475,664.13 and 215,622.45 is: 297,537.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,708.91 : 475,664.13 = 215,622.45 : x
  2. Step 2: Convert to fraction form
    344,708.91/475,664.13 = 215,622.45/x
  3. Step 3: Cross multiply
    344,708.91x = 475,664.13 × 215,622.45
  4. Step 4: Simplify right side
    344,708.91x = 102,563,865,087.72
  5. Step 5: Solve for x
    x = 102,563,865,087.72/344,708.91
  6. Step 6: Final answer
    x = 297,537.61

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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.