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Finding the Fourth Proportional to 321,566.71, 443,759.56 and 178,327.12

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Solution

The fourth proportional to 321,566.71, 443,759.56 and 178,327.12 is: 246,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,566.71 : 443,759.56 = 178,327.12 : x
  2. Step 2: Convert to fraction form
    321,566.71/443,759.56 = 178,327.12/x
  3. Step 3: Cross multiply
    321,566.71x = 443,759.56 × 178,327.12
  4. Step 4: Simplify right side
    321,566.71x = 79,134,364,307.27
  5. Step 5: Solve for x
    x = 79,134,364,307.27/321,566.71
  6. Step 6: Final answer
    x = 246,090.04

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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.