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Finding the Fourth Proportional to 368,441.80, 552,662.70 and 324,896.20

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Solution

The fourth proportional to 368,441.80, 552,662.70 and 324,896.20 is: 487,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,441.80 : 552,662.70 = 324,896.20 : x
  2. Step 2: Convert to fraction form
    368,441.80/552,662.70 = 324,896.20/x
  3. Step 3: Cross multiply
    368,441.80x = 552,662.70 × 324,896.20
  4. Step 4: Simplify right side
    368,441.80x = 179,558,011,111.74
  5. Step 5: Solve for x
    x = 179,558,011,111.74/368,441.80
  6. Step 6: Final answer
    x = 487,344.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.