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Finding the Fourth Proportional to 454,672.80, 683,321.40 and 446,799.60

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Solution

The fourth proportional to 454,672.80, 683,321.40 and 446,799.60 is: 671,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,672.80 : 683,321.40 = 446,799.60 : x
  2. Step 2: Convert to fraction form
    454,672.80/683,321.40 = 446,799.60/x
  3. Step 3: Cross multiply
    454,672.80x = 683,321.40 × 446,799.60
  4. Step 4: Simplify right side
    454,672.80x = 305,307,728,191.44
  5. Step 5: Solve for x
    x = 305,307,728,191.44/454,672.80
  6. Step 6: Final answer
    x = 671,488.88

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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.