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Finding the Fourth Proportional to 469,679.22, 648,158.49 and 254,819.23

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Solution

The fourth proportional to 469,679.22, 648,158.49 and 254,819.23 is: 351,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,679.22 : 648,158.49 = 254,819.23 : x
  2. Step 2: Convert to fraction form
    469,679.22/648,158.49 = 254,819.23/x
  3. Step 3: Cross multiply
    469,679.22x = 648,158.49 × 254,819.23
  4. Step 4: Simplify right side
    469,679.22x = 165,163,245,719.37
  5. Step 5: Solve for x
    x = 165,163,245,719.37/469,679.22
  6. Step 6: Final answer
    x = 351,651.17

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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.