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Finding the Fourth Proportional to 335,921.80, 470,912.60 and 335,921.80

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Solution

The fourth proportional to 335,921.80, 470,912.60 and 335,921.80 is: 470,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,921.80 : 470,912.60 = 335,921.80 : x
  2. Step 2: Convert to fraction form
    335,921.80/470,912.60 = 335,921.80/x
  3. Step 3: Cross multiply
    335,921.80x = 470,912.60 × 335,921.80
  4. Step 4: Simplify right side
    335,921.80x = 158,189,808,234.68
  5. Step 5: Solve for x
    x = 158,189,808,234.68/335,921.80
  6. Step 6: Final answer
    x = 470,912.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.