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Finding the Fourth Proportional to 551,874.46, 828,390.84 and 489,096.22

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Solution

The fourth proportional to 551,874.46, 828,390.84 and 489,096.22 is: 734,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,874.46 : 828,390.84 = 489,096.22 : x
  2. Step 2: Convert to fraction form
    551,874.46/828,390.84 = 489,096.22/x
  3. Step 3: Cross multiply
    551,874.46x = 828,390.84 × 489,096.22
  4. Step 4: Simplify right side
    551,874.46x = 405,162,828,526.63
  5. Step 5: Solve for x
    x = 405,162,828,526.63/551,874.46
  6. Step 6: Final answer
    x = 734,157.60

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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.