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Finding the Fourth Proportional to 423,568.44, 635,352.86 and 265,907.61

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Solution

The fourth proportional to 423,568.44, 635,352.86 and 265,907.61 is: 398,861.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,568.44 : 635,352.86 = 265,907.61 : x
  2. Step 2: Convert to fraction form
    423,568.44/635,352.86 = 265,907.61/x
  3. Step 3: Cross multiply
    423,568.44x = 635,352.86 × 265,907.61
  4. Step 4: Simplify right side
    423,568.44x = 168,945,161,174.03
  5. Step 5: Solve for x
    x = 168,945,161,174.03/423,568.44
  6. Step 6: Final answer
    x = 398,861.54

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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.