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Finding the Fourth Proportional to 583,276.80, 874,435.20 and 263,449.60

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Solution

The fourth proportional to 583,276.80, 874,435.20 and 263,449.60 is: 394,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,276.80 : 874,435.20 = 263,449.60 : x
  2. Step 2: Convert to fraction form
    583,276.80/874,435.20 = 263,449.60/x
  3. Step 3: Cross multiply
    583,276.80x = 874,435.20 × 263,449.60
  4. Step 4: Simplify right side
    583,276.80x = 230,369,603,665.92
  5. Step 5: Solve for x
    x = 230,369,603,665.92/583,276.80
  6. Step 6: Final answer
    x = 394,957.60

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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.