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Finding the Fourth Proportional to 324,268.46, 486,697.85 and 172,592.87

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Solution

The fourth proportional to 324,268.46, 486,697.85 and 172,592.87 is: 259,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,268.46 : 486,697.85 = 172,592.87 : x
  2. Step 2: Convert to fraction form
    324,268.46/486,697.85 = 172,592.87/x
  3. Step 3: Cross multiply
    324,268.46x = 486,697.85 × 172,592.87
  4. Step 4: Simplify right side
    324,268.46x = 84,000,577,473.94
  5. Step 5: Solve for x
    x = 84,000,577,473.94/324,268.46
  6. Step 6: Final answer
    x = 259,046.40

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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.