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Finding the Fourth Proportional to 325,511.30, 448,905.84 and 223,356.54

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Solution

The fourth proportional to 325,511.30, 448,905.84 and 223,356.54 is: 308,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,511.30 : 448,905.84 = 223,356.54 : x
  2. Step 2: Convert to fraction form
    325,511.30/448,905.84 = 223,356.54/x
  3. Step 3: Cross multiply
    325,511.30x = 448,905.84 × 223,356.54
  4. Step 4: Simplify right side
    325,511.30x = 100,266,055,208.19
  5. Step 5: Solve for x
    x = 100,266,055,208.19/325,511.30
  6. Step 6: Final answer
    x = 308,026.34

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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.