Home / 352,600.26-486,519.93-209,405.22

Finding the Fourth Proportional to 352,600.26, 486,519.93 and 209,405.22

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Solution

The fourth proportional to 352,600.26, 486,519.93 and 209,405.22 is: 288,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,600.26 : 486,519.93 = 209,405.22 : x
  2. Step 2: Convert to fraction form
    352,600.26/486,519.93 = 209,405.22/x
  3. Step 3: Cross multiply
    352,600.26x = 486,519.93 × 209,405.22
  4. Step 4: Simplify right side
    352,600.26x = 101,879,812,976.04
  5. Step 5: Solve for x
    x = 101,879,812,976.04/352,600.26
  6. Step 6: Final answer
    x = 288,938.56

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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.