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Finding the Fourth Proportional to 322,955.69, 445,671.86 and 186,995.57

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Solution

The fourth proportional to 322,955.69, 445,671.86 and 186,995.57 is: 258,049.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,955.69 : 445,671.86 = 186,995.57 : x
  2. Step 2: Convert to fraction form
    322,955.69/445,671.86 = 186,995.57/x
  3. Step 3: Cross multiply
    322,955.69x = 445,671.86 × 186,995.57
  4. Step 4: Simplify right side
    322,955.69x = 83,338,660,330.32
  5. Step 5: Solve for x
    x = 83,338,660,330.32/322,955.69
  6. Step 6: Final answer
    x = 258,049.83

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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.