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Finding the Fourth Proportional to 339,684.57, 509,610.38 and 168,986.89

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Solution

The fourth proportional to 339,684.57, 509,610.38 and 168,986.89 is: 253,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,684.57 : 509,610.38 = 168,986.89 : x
  2. Step 2: Convert to fraction form
    339,684.57/509,610.38 = 168,986.89/x
  3. Step 3: Cross multiply
    339,684.57x = 509,610.38 × 168,986.89
  4. Step 4: Simplify right side
    339,684.57x = 86,117,473,227.92
  5. Step 5: Solve for x
    x = 86,117,473,227.92/339,684.57
  6. Step 6: Final answer
    x = 253,521.89

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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.