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Finding the Fourth Proportional to 698,600.70, 964,029.60 and 412,213.05

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Solution

The fourth proportional to 698,600.70, 964,029.60 and 412,213.05 is: 568,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,600.70 : 964,029.60 = 412,213.05 : x
  2. Step 2: Convert to fraction form
    698,600.70/964,029.60 = 412,213.05/x
  3. Step 3: Cross multiply
    698,600.70x = 964,029.60 × 412,213.05
  4. Step 4: Simplify right side
    698,600.70x = 397,385,581,706.28
  5. Step 5: Solve for x
    x = 397,385,581,706.28/698,600.70
  6. Step 6: Final answer
    x = 568,830.78

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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.