Home / 493,299.54-680,536.26-289,246.86

Finding the Fourth Proportional to 493,299.54, 680,536.26 and 289,246.86

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Solution

The fourth proportional to 493,299.54, 680,536.26 and 289,246.86 is: 399,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,299.54 : 680,536.26 = 289,246.86 : x
  2. Step 2: Convert to fraction form
    493,299.54/680,536.26 = 289,246.86/x
  3. Step 3: Cross multiply
    493,299.54x = 680,536.26 × 289,246.86
  4. Step 4: Simplify right side
    493,299.54x = 196,842,976,321.14
  5. Step 5: Solve for x
    x = 196,842,976,321.14/493,299.54
  6. Step 6: Final answer
    x = 399,033.37

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1.5x scale

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.