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Finding the Fourth Proportional to 422,802.80, 634,204.22 and 365,707.04

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Solution

The fourth proportional to 422,802.80, 634,204.22 and 365,707.04 is: 548,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,802.80 : 634,204.22 = 365,707.04 : x
  2. Step 2: Convert to fraction form
    422,802.80/634,204.22 = 365,707.04/x
  3. Step 3: Cross multiply
    422,802.80x = 634,204.22 × 365,707.04
  4. Step 4: Simplify right side
    422,802.80x = 231,932,943,052.15
  5. Step 5: Solve for x
    x = 231,932,943,052.15/422,802.80
  6. Step 6: Final answer
    x = 548,560.56

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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.