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Finding the Fourth Proportional to 526,793.97, 726,975.66 and 285,076.54

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Solution

The fourth proportional to 526,793.97, 726,975.66 and 285,076.54 is: 393,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,793.97 : 726,975.66 = 285,076.54 : x
  2. Step 2: Convert to fraction form
    526,793.97/726,975.66 = 285,076.54/x
  3. Step 3: Cross multiply
    526,793.97x = 726,975.66 × 285,076.54
  4. Step 4: Simplify right side
    526,793.97x = 207,243,705,817.02
  5. Step 5: Solve for x
    x = 207,243,705,817.02/526,793.97
  6. Step 6: Final answer
    x = 393,405.62

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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.