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Finding the Fourth Proportional to 478,048.22, 659,693.72 and 263,189.88

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Solution

The fourth proportional to 478,048.22, 659,693.72 and 263,189.88 is: 363,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,048.22 : 659,693.72 = 263,189.88 : x
  2. Step 2: Convert to fraction form
    478,048.22/659,693.72 = 263,189.88/x
  3. Step 3: Cross multiply
    478,048.22x = 659,693.72 × 263,189.88
  4. Step 4: Simplify right side
    478,048.22x = 173,624,711,003.55
  5. Step 5: Solve for x
    x = 173,624,711,003.55/478,048.22
  6. Step 6: Final answer
    x = 363,194.97

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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.