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Finding the Fourth Proportional to 526,339.89, 789,323.54 and 171,287.73

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Solution

The fourth proportional to 526,339.89, 789,323.54 and 171,287.73 is: 256,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,339.89 : 789,323.54 = 171,287.73 : x
  2. Step 2: Convert to fraction form
    526,339.89/789,323.54 = 171,287.73/x
  3. Step 3: Cross multiply
    526,339.89x = 789,323.54 × 171,287.73
  4. Step 4: Simplify right side
    526,339.89x = 135,201,436,545.73
  5. Step 5: Solve for x
    x = 135,201,436,545.73/526,339.89
  6. Step 6: Final answer
    x = 256,870.97

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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.