Home / 313,311.33-469,821.20-113,623.65

Finding the Fourth Proportional to 313,311.33, 469,821.20 and 113,623.65

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Solution

The fourth proportional to 313,311.33, 469,821.20 and 113,623.65 is: 170,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,311.33 : 469,821.20 = 113,623.65 : x
  2. Step 2: Convert to fraction form
    313,311.33/469,821.20 = 113,623.65/x
  3. Step 3: Cross multiply
    313,311.33x = 469,821.20 × 113,623.65
  4. Step 4: Simplify right side
    313,311.33x = 53,382,799,023.26
  5. Step 5: Solve for x
    x = 53,382,799,023.26/313,311.33
  6. Step 6: Final answer
    x = 170,382.60

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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.