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Finding the Fourth Proportional to 323,878.94, 446,789.49 and 216,591.74

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Solution

The fourth proportional to 323,878.94, 446,789.49 and 216,591.74 is: 298,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,878.94 : 446,789.49 = 216,591.74 : x
  2. Step 2: Convert to fraction form
    323,878.94/446,789.49 = 216,591.74/x
  3. Step 3: Cross multiply
    323,878.94x = 446,789.49 × 216,591.74
  4. Step 4: Simplify right side
    323,878.94x = 96,770,913,052.81
  5. Step 5: Solve for x
    x = 96,770,913,052.81/323,878.94
  6. Step 6: Final answer
    x = 298,787.30

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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.