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Finding the Fourth Proportional to 321,337.44, 443,429.64 and 178,096.23

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Solution

The fourth proportional to 321,337.44, 443,429.64 and 178,096.23 is: 245,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,337.44 : 443,429.64 = 178,096.23 : x
  2. Step 2: Convert to fraction form
    321,337.44/443,429.64 = 178,096.23/x
  3. Step 3: Cross multiply
    321,337.44x = 443,429.64 × 178,096.23
  4. Step 4: Simplify right side
    321,337.44x = 78,973,147,154.26
  5. Step 5: Solve for x
    x = 78,973,147,154.26/321,337.44
  6. Step 6: Final answer
    x = 245,763.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.