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Finding the Fourth Proportional to 443,738.54, 665,607.78 and 106,779.23

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Solution

The fourth proportional to 443,738.54, 665,607.78 and 106,779.23 is: 160,168.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,738.54 : 665,607.78 = 106,779.23 : x
  2. Step 2: Convert to fraction form
    443,738.54/665,607.78 = 106,779.23/x
  3. Step 3: Cross multiply
    443,738.54x = 665,607.78 × 106,779.23
  4. Step 4: Simplify right side
    443,738.54x = 71,073,086,230.41
  5. Step 5: Solve for x
    x = 71,073,086,230.41/443,738.54
  6. Step 6: Final answer
    x = 160,168.84

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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.