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Finding the Fourth Proportional to 322,880.84, 445,568.60 and 186,920.54

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Solution

The fourth proportional to 322,880.84, 445,568.60 and 186,920.54 is: 257,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,880.84 : 445,568.60 = 186,920.54 : x
  2. Step 2: Convert to fraction form
    322,880.84/445,568.60 = 186,920.54/x
  3. Step 3: Cross multiply
    322,880.84x = 445,568.60 × 186,920.54
  4. Step 4: Simplify right side
    322,880.84x = 83,285,923,319.04
  5. Step 5: Solve for x
    x = 83,285,923,319.04/322,880.84
  6. Step 6: Final answer
    x = 257,946.32

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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.