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Finding the Fourth Proportional to 263,304.54, 394,881.41 and 85,827.06

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Solution

The fourth proportional to 263,304.54, 394,881.41 and 85,827.06 is: 128,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,304.54 : 394,881.41 = 85,827.06 : x
  2. Step 2: Convert to fraction form
    263,304.54/394,881.41 = 85,827.06/x
  3. Step 3: Cross multiply
    263,304.54x = 394,881.41 × 85,827.06
  4. Step 4: Simplify right side
    263,304.54x = 33,891,510,683.52
  5. Step 5: Solve for x
    x = 33,891,510,683.52/263,304.54
  6. Step 6: Final answer
    x = 128,716.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.