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Finding the Fourth Proportional to 339,685.26, 509,527.29 and 90,367.26

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Solution

The fourth proportional to 339,685.26, 509,527.29 and 90,367.26 is: 135,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,685.26 : 509,527.29 = 90,367.26 : x
  2. Step 2: Convert to fraction form
    339,685.26/509,527.29 = 90,367.26/x
  3. Step 3: Cross multiply
    339,685.26x = 509,527.29 × 90,367.26
  4. Step 4: Simplify right side
    339,685.26x = 46,044,585,092.53
  5. Step 5: Solve for x
    x = 46,044,585,092.53/339,685.26
  6. Step 6: Final answer
    x = 135,550.73

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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.