Home / 780,514.56-1,170,777.60-219,605.76

Finding the Fourth Proportional to 780,514.56, 1,170,777.60 and 219,605.76

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Solution

The fourth proportional to 780,514.56, 1,170,777.60 and 219,605.76 is: 329,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,514.56 : 1,170,777.60 = 219,605.76 : x
  2. Step 2: Convert to fraction form
    780,514.56/1,170,777.60 = 219,605.76/x
  3. Step 3: Cross multiply
    780,514.56x = 1,170,777.60 × 219,605.76
  4. Step 4: Simplify right side
    780,514.56x = 257,109,504,638.98
  5. Step 5: Solve for x
    x = 257,109,504,638.98/780,514.56
  6. Step 6: Final answer
    x = 329,410.26

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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.