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Finding the Fourth Proportional to 681,282.44, 940,099.32 and 419,596.04

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Solution

The fourth proportional to 681,282.44, 940,099.32 and 419,596.04 is: 578,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,282.44 : 940,099.32 = 419,596.04 : x
  2. Step 2: Convert to fraction form
    681,282.44/940,099.32 = 419,596.04/x
  3. Step 3: Cross multiply
    681,282.44x = 940,099.32 × 419,596.04
  4. Step 4: Simplify right side
    681,282.44x = 394,461,951,878.69
  5. Step 5: Solve for x
    x = 394,461,951,878.69/681,282.44
  6. Step 6: Final answer
    x = 578,999.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.