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Finding the Fourth Proportional to 583,286.80, 874,450.20 and 263,459.60

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Solution

The fourth proportional to 583,286.80, 874,450.20 and 263,459.60 is: 394,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,286.80 : 874,450.20 = 263,459.60 : x
  2. Step 2: Convert to fraction form
    583,286.80/874,450.20 = 263,459.60/x
  3. Step 3: Cross multiply
    583,286.80x = 874,450.20 × 263,459.60
  4. Step 4: Simplify right side
    583,286.80x = 230,382,299,911.92
  5. Step 5: Solve for x
    x = 230,382,299,911.92/583,286.80
  6. Step 6: Final answer
    x = 394,972.59

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1.5x scale

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.