Home / 770,200.40-1,152,190.20-666,174.80

Finding the Fourth Proportional to 770,200.40, 1,152,190.20 and 666,174.80

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Solution

The fourth proportional to 770,200.40, 1,152,190.20 and 666,174.80 is: 996,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,200.40 : 1,152,190.20 = 666,174.80 : x
  2. Step 2: Convert to fraction form
    770,200.40/1,152,190.20 = 666,174.80/x
  3. Step 3: Cross multiply
    770,200.40x = 1,152,190.20 × 666,174.80
  4. Step 4: Simplify right side
    770,200.40x = 767,560,076,046.96
  5. Step 5: Solve for x
    x = 767,560,076,046.96/770,200.40
  6. Step 6: Final answer
    x = 996,571.90

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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.