Home / 1,279,162.80-1,765,181.16-734,913

Finding the Fourth Proportional to 1,279,162.80, 1,765,181.16 and 734,913

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Solution

The fourth proportional to 1,279,162.80, 1,765,181.16 and 734,913 is: 1,014,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,162.80 : 1,765,181.16 = 734,913 : x
  2. Step 2: Convert to fraction form
    1,279,162.80/1,765,181.16 = 734,913/x
  3. Step 3: Cross multiply
    1,279,162.80x = 1,765,181.16 × 734,913
  4. Step 4: Simplify right side
    1,279,162.80x = 1,297,254,581,839.08
  5. Step 5: Solve for x
    x = 1,297,254,581,839.08/1,279,162.80
  6. Step 6: Final answer
    x = 1,014,143.46

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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.