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Finding the Fourth Proportional to 339,613.59, 509,196.81 and 190,074.63

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Solution

The fourth proportional to 339,613.59, 509,196.81 and 190,074.63 is: 284,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,613.59 : 509,196.81 = 190,074.63 : x
  2. Step 2: Convert to fraction form
    339,613.59/509,196.81 = 190,074.63/x
  3. Step 3: Cross multiply
    339,613.59x = 509,196.81 × 190,074.63
  4. Step 4: Simplify right side
    339,613.59x = 96,785,395,257.93
  5. Step 5: Solve for x
    x = 96,785,395,257.93/339,613.59
  6. Step 6: Final answer
    x = 284,986.81

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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.