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Finding the Fourth Proportional to 339,406.14, 509,101.31 and 170,881.22

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Solution

The fourth proportional to 339,406.14, 509,101.31 and 170,881.22 is: 256,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,406.14 : 509,101.31 = 170,881.22 : x
  2. Step 2: Convert to fraction form
    339,406.14/509,101.31 = 170,881.22/x
  3. Step 3: Cross multiply
    339,406.14x = 509,101.31 × 170,881.22
  4. Step 4: Simplify right side
    339,406.14x = 86,995,849,556.49
  5. Step 5: Solve for x
    x = 86,995,849,556.49/339,406.14
  6. Step 6: Final answer
    x = 256,317.84

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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.