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Finding the Fourth Proportional to 382,005.80, 573,620.70 and 303,770.60

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Solution

The fourth proportional to 382,005.80, 573,620.70 and 303,770.60 is: 456,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,005.80 : 573,620.70 = 303,770.60 : x
  2. Step 2: Convert to fraction form
    382,005.80/573,620.70 = 303,770.60/x
  3. Step 3: Cross multiply
    382,005.80x = 573,620.70 × 303,770.60
  4. Step 4: Simplify right side
    382,005.80x = 174,249,104,211.42
  5. Step 5: Solve for x
    x = 174,249,104,211.42/382,005.80
  6. Step 6: Final answer
    x = 456,142.56

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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.