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Finding the Fourth Proportional to 272,282.40, 407,840.40 and 225,626.40

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Solution

The fourth proportional to 272,282.40, 407,840.40 and 225,626.40 is: 337,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,282.40 : 407,840.40 = 225,626.40 : x
  2. Step 2: Convert to fraction form
    272,282.40/407,840.40 = 225,626.40/x
  3. Step 3: Cross multiply
    272,282.40x = 407,840.40 × 225,626.40
  4. Step 4: Simplify right side
    272,282.40x = 92,019,561,226.56
  5. Step 5: Solve for x
    x = 92,019,561,226.56/272,282.40
  6. Step 6: Final answer
    x = 337,956.33

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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.