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Finding the Fourth Proportional to 275,416.80, 412,336.80 and 169,522.80

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Solution

The fourth proportional to 275,416.80, 412,336.80 and 169,522.80 is: 253,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,416.80 : 412,336.80 = 169,522.80 : x
  2. Step 2: Convert to fraction form
    275,416.80/412,336.80 = 169,522.80/x
  3. Step 3: Cross multiply
    275,416.80x = 412,336.80 × 169,522.80
  4. Step 4: Simplify right side
    275,416.80x = 69,900,488,879.04
  5. Step 5: Solve for x
    x = 69,900,488,879.04/275,416.80
  6. Step 6: Final answer
    x = 253,798.93

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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.