Home / 322,815.97-445,496.71-177,638.35

Finding the Fourth Proportional to 322,815.97, 445,496.71 and 177,638.35

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Solution

The fourth proportional to 322,815.97, 445,496.71 and 177,638.35 is: 245,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,815.97 : 445,496.71 = 177,638.35 : x
  2. Step 2: Convert to fraction form
    322,815.97/445,496.71 = 177,638.35/x
  3. Step 3: Cross multiply
    322,815.97x = 445,496.71 × 177,638.35
  4. Step 4: Simplify right side
    322,815.97x = 79,137,298,936.99
  5. Step 5: Solve for x
    x = 79,137,298,936.99/322,815.97
  6. Step 6: Final answer
    x = 245,146.79

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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.