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Finding the Fourth Proportional to 293,334.40, 440,657.70 and 281,378.80

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Solution

The fourth proportional to 293,334.40, 440,657.70 and 281,378.80 is: 422,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,334.40 : 440,657.70 = 281,378.80 : x
  2. Step 2: Convert to fraction form
    293,334.40/440,657.70 = 281,378.80/x
  3. Step 3: Cross multiply
    293,334.40x = 440,657.70 × 281,378.80
  4. Step 4: Simplify right side
    293,334.40x = 123,991,734,836.76
  5. Step 5: Solve for x
    x = 123,991,734,836.76/293,334.40
  6. Step 6: Final answer
    x = 422,697.56

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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.