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Finding the Fourth Proportional to 448,121.80, 617,992.44 and 327,071.32

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Solution

The fourth proportional to 448,121.80, 617,992.44 and 327,071.32 is: 451,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,121.80 : 617,992.44 = 327,071.32 : x
  2. Step 2: Convert to fraction form
    448,121.80/617,992.44 = 327,071.32/x
  3. Step 3: Cross multiply
    448,121.80x = 617,992.44 × 327,071.32
  4. Step 4: Simplify right side
    448,121.80x = 202,127,603,100.82
  5. Step 5: Solve for x
    x = 202,127,603,100.82/448,121.80
  6. Step 6: Final answer
    x = 451,055.05

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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.