Home / 1,311,613.56-1,967,964.66-628,156.62

Finding the Fourth Proportional to 1,311,613.56, 1,967,964.66 and 628,156.62

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Solution

The fourth proportional to 1,311,613.56, 1,967,964.66 and 628,156.62 is: 942,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,613.56 : 1,967,964.66 = 628,156.62 : x
  2. Step 2: Convert to fraction form
    1,311,613.56/1,967,964.66 = 628,156.62/x
  3. Step 3: Cross multiply
    1,311,613.56x = 1,967,964.66 × 628,156.62
  4. Step 4: Simplify right side
    1,311,613.56x = 1,236,190,029,105.05
  5. Step 5: Solve for x
    x = 1,236,190,029,105.05/1,311,613.56
  6. Step 6: Final answer
    x = 942,495.62

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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.