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Finding the Fourth Proportional to 940,998.32, 1,410,704.04 and 408,118

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Solution

The fourth proportional to 940,998.32, 1,410,704.04 and 408,118 is: 611,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,998.32 : 1,410,704.04 = 408,118 : x
  2. Step 2: Convert to fraction form
    940,998.32/1,410,704.04 = 408,118/x
  3. Step 3: Cross multiply
    940,998.32x = 1,410,704.04 × 408,118
  4. Step 4: Simplify right side
    940,998.32x = 575,733,711,396.72
  5. Step 5: Solve for x
    x = 575,733,711,396.72/940,998.32
  6. Step 6: Final answer
    x = 611,832.88

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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.