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Finding the Fourth Proportional to 313,879.70, 433,144.93 and 177,926.21

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Solution

The fourth proportional to 313,879.70, 433,144.93 and 177,926.21 is: 245,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,879.70 : 433,144.93 = 177,926.21 : x
  2. Step 2: Convert to fraction form
    313,879.70/433,144.93 = 177,926.21/x
  3. Step 3: Cross multiply
    313,879.70x = 433,144.93 × 177,926.21
  4. Step 4: Simplify right side
    313,879.70x = 77,067,835,775.62
  5. Step 5: Solve for x
    x = 77,067,835,775.62/313,879.70
  6. Step 6: Final answer
    x = 245,533.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.