Home / 770,705.20-1,156,168.44-238,267.72

Finding the Fourth Proportional to 770,705.20, 1,156,168.44 and 238,267.72

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Solution

The fourth proportional to 770,705.20, 1,156,168.44 and 238,267.72 is: 357,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,705.20 : 1,156,168.44 = 238,267.72 : x
  2. Step 2: Convert to fraction form
    770,705.20/1,156,168.44 = 238,267.72/x
  3. Step 3: Cross multiply
    770,705.20x = 1,156,168.44 × 238,267.72
  4. Step 4: Simplify right side
    770,705.20x = 275,477,618,134.76
  5. Step 5: Solve for x
    x = 275,477,618,134.76/770,705.20
  6. Step 6: Final answer
    x = 357,435.78

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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.