Home / 326,986.16-490,603.78-113,777.76

Finding the Fourth Proportional to 326,986.16, 490,603.78 and 113,777.76

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Solution

The fourth proportional to 326,986.16, 490,603.78 and 113,777.76 is: 170,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,986.16 : 490,603.78 = 113,777.76 : x
  2. Step 2: Convert to fraction form
    326,986.16/490,603.78 = 113,777.76/x
  3. Step 3: Cross multiply
    326,986.16x = 490,603.78 × 113,777.76
  4. Step 4: Simplify right side
    326,986.16x = 55,819,797,624.98
  5. Step 5: Solve for x
    x = 55,819,797,624.98/326,986.16
  6. Step 6: Final answer
    x = 170,709.97

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1.5x scale

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.