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Finding the Fourth Proportional to 313,371.54, 432,479.49 and 177,429.44

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Solution

The fourth proportional to 313,371.54, 432,479.49 and 177,429.44 is: 244,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,371.54 : 432,479.49 = 177,429.44 : x
  2. Step 2: Convert to fraction form
    313,371.54/432,479.49 = 177,429.44/x
  3. Step 3: Cross multiply
    313,371.54x = 432,479.49 × 177,429.44
  4. Step 4: Simplify right side
    313,371.54x = 76,734,594,803.38
  5. Step 5: Solve for x
    x = 76,734,594,803.38/313,371.54
  6. Step 6: Final answer
    x = 244,867.78

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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.