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Finding the Fourth Proportional to 313,377.54, 432,487.78 and 177,435.44

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Solution

The fourth proportional to 313,377.54, 432,487.78 and 177,435.44 is: 244,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,377.54 : 432,487.78 = 177,435.44 : x
  2. Step 2: Convert to fraction form
    313,377.54/432,487.78 = 177,435.44/x
  3. Step 3: Cross multiply
    313,377.54x = 432,487.78 × 177,435.44
  4. Step 4: Simplify right side
    313,377.54x = 76,738,659,538.92
  5. Step 5: Solve for x
    x = 76,738,659,538.92/313,377.54
  6. Step 6: Final answer
    x = 244,876.07

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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.