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Finding the Fourth Proportional to 443,682.80, 665,621.40 and 177,376.40

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Solution

The fourth proportional to 443,682.80, 665,621.40 and 177,376.40 is: 266,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,682.80 : 665,621.40 = 177,376.40 : x
  2. Step 2: Convert to fraction form
    443,682.80/665,621.40 = 177,376.40/x
  3. Step 3: Cross multiply
    443,682.80x = 665,621.40 × 177,376.40
  4. Step 4: Simplify right side
    443,682.80x = 118,065,527,694.96
  5. Step 5: Solve for x
    x = 118,065,527,694.96/443,682.80
  6. Step 6: Final answer
    x = 266,103.46

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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.