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Finding the Fourth Proportional to 633,924.46, 874,540.83 and 419,363.36

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Solution

The fourth proportional to 633,924.46, 874,540.83 and 419,363.36 is: 578,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,924.46 : 874,540.83 = 419,363.36 : x
  2. Step 2: Convert to fraction form
    633,924.46/874,540.83 = 419,363.36/x
  3. Step 3: Cross multiply
    633,924.46x = 874,540.83 × 419,363.36
  4. Step 4: Simplify right side
    633,924.46x = 366,750,381,405.43
  5. Step 5: Solve for x
    x = 366,750,381,405.43/633,924.46
  6. Step 6: Final answer
    x = 578,539.56

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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.