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Finding the Fourth Proportional to 322,390.82, 444,878.93 and 179,142.32

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Solution

The fourth proportional to 322,390.82, 444,878.93 and 179,142.32 is: 247,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,390.82 : 444,878.93 = 179,142.32 : x
  2. Step 2: Convert to fraction form
    322,390.82/444,878.93 = 179,142.32/x
  3. Step 3: Cross multiply
    322,390.82x = 444,878.93 × 179,142.32
  4. Step 4: Simplify right side
    322,390.82x = 79,696,645,199.37
  5. Step 5: Solve for x
    x = 79,696,645,199.37/322,390.82
  6. Step 6: Final answer
    x = 247,205.07

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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.