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Finding the Fourth Proportional to 321,893.88, 444,207.42 and 178,655.64

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Solution

The fourth proportional to 321,893.88, 444,207.42 and 178,655.64 is: 246,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,893.88 : 444,207.42 = 178,655.64 : x
  2. Step 2: Convert to fraction form
    321,893.88/444,207.42 = 178,655.64/x
  3. Step 3: Cross multiply
    321,893.88x = 444,207.42 × 178,655.64
  4. Step 4: Simplify right side
    321,893.88x = 79,360,160,912.85
  5. Step 5: Solve for x
    x = 79,360,160,912.85/321,893.88
  6. Step 6: Final answer
    x = 246,541.38

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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.