Home / 770,840.20-1,154,705.10-534,449.80

Finding the Fourth Proportional to 770,840.20, 1,154,705.10 and 534,449.80

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Solution

The fourth proportional to 770,840.20, 1,154,705.10 and 534,449.80 is: 800,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,840.20 : 1,154,705.10 = 534,449.80 : x
  2. Step 2: Convert to fraction form
    770,840.20/1,154,705.10 = 534,449.80/x
  3. Step 3: Cross multiply
    770,840.20x = 1,154,705.10 × 534,449.80
  4. Step 4: Simplify right side
    770,840.20x = 617,131,909,753.98
  5. Step 5: Solve for x
    x = 617,131,909,753.98/770,840.20
  6. Step 6: Final answer
    x = 800,596.43

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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.