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Finding the Fourth Proportional to 325,486.68, 448,871.86 and 223,331.91

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Solution

The fourth proportional to 325,486.68, 448,871.86 and 223,331.91 is: 307,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,486.68 : 448,871.86 = 223,331.91 : x
  2. Step 2: Convert to fraction form
    325,486.68/448,871.86 = 223,331.91/x
  3. Step 3: Cross multiply
    325,486.68x = 448,871.86 × 223,331.91
  4. Step 4: Simplify right side
    325,486.68x = 100,247,409,839.05
  5. Step 5: Solve for x
    x = 100,247,409,839.05/325,486.68
  6. Step 6: Final answer
    x = 307,992.36

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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.