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Finding the Fourth Proportional to 641,954.42, 963,091.54 and 192,683.60

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Solution

The fourth proportional to 641,954.42, 963,091.54 and 192,683.60 is: 289,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,954.42 : 963,091.54 = 192,683.60 : x
  2. Step 2: Convert to fraction form
    641,954.42/963,091.54 = 192,683.60/x
  3. Step 3: Cross multiply
    641,954.42x = 963,091.54 × 192,683.60
  4. Step 4: Simplify right side
    641,954.42x = 185,571,945,056.74
  5. Step 5: Solve for x
    x = 185,571,945,056.74/641,954.42
  6. Step 6: Final answer
    x = 289,073.40

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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.