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Finding the Fourth Proportional to 296,058.92, 408,071.94 and 220,579.88

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Solution

The fourth proportional to 296,058.92, 408,071.94 and 220,579.88 is: 304,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,058.92 : 408,071.94 = 220,579.88 : x
  2. Step 2: Convert to fraction form
    296,058.92/408,071.94 = 220,579.88/x
  3. Step 3: Cross multiply
    296,058.92x = 408,071.94 × 220,579.88
  4. Step 4: Simplify right side
    296,058.92x = 90,012,459,556.57
  5. Step 5: Solve for x
    x = 90,012,459,556.57/296,058.92
  6. Step 6: Final answer
    x = 304,035.63

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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.