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Finding the Fourth Proportional to 331,960.40, 497,346.60 and 201,892.40

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Solution

The fourth proportional to 331,960.40, 497,346.60 and 201,892.40 is: 302,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,960.40 : 497,346.60 = 201,892.40 : x
  2. Step 2: Convert to fraction form
    331,960.40/497,346.60 = 201,892.40/x
  3. Step 3: Cross multiply
    331,960.40x = 497,346.60 × 201,892.40
  4. Step 4: Simplify right side
    331,960.40x = 100,410,498,705.84
  5. Step 5: Solve for x
    x = 100,410,498,705.84/331,960.40
  6. Step 6: Final answer
    x = 302,477.34

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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.