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Finding the Fourth Proportional to 551,176.40, 826,764.60 and 543,803.60

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Solution

The fourth proportional to 551,176.40, 826,764.60 and 543,803.60 is: 815,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,176.40 : 826,764.60 = 543,803.60 : x
  2. Step 2: Convert to fraction form
    551,176.40/826,764.60 = 543,803.60/x
  3. Step 3: Cross multiply
    551,176.40x = 826,764.60 × 543,803.60
  4. Step 4: Simplify right side
    551,176.40x = 449,597,565,832.56
  5. Step 5: Solve for x
    x = 449,597,565,832.56/551,176.40
  6. Step 6: Final answer
    x = 815,705.40

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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.