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Finding the Fourth Proportional to 633,652.26, 874,440 and 379,063.32

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Solution

The fourth proportional to 633,652.26, 874,440 and 379,063.32 is: 523,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,652.26 : 874,440 = 379,063.32 : x
  2. Step 2: Convert to fraction form
    633,652.26/874,440 = 379,063.32/x
  3. Step 3: Cross multiply
    633,652.26x = 874,440 × 379,063.32
  4. Step 4: Simplify right side
    633,652.26x = 331,468,129,540.80
  5. Step 5: Solve for x
    x = 331,468,129,540.80/633,652.26
  6. Step 6: Final answer
    x = 523,107.31

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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.