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Finding the Fourth Proportional to 273,815.40, 410,982.30 and 168,839.40

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Solution

The fourth proportional to 273,815.40, 410,982.30 and 168,839.40 is: 253,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,815.40 : 410,982.30 = 168,839.40 : x
  2. Step 2: Convert to fraction form
    273,815.40/410,982.30 = 168,839.40/x
  3. Step 3: Cross multiply
    273,815.40x = 410,982.30 × 168,839.40
  4. Step 4: Simplify right side
    273,815.40x = 69,390,004,942.62
  5. Step 5: Solve for x
    x = 69,390,004,942.62/273,815.40
  6. Step 6: Final answer
    x = 253,418.93

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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.