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Finding the Fourth Proportional to 575,778.20, 863,778.00 and 220,764.54

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Solution

The fourth proportional to 575,778.20, 863,778.00 and 220,764.54 is: 331,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,778.20 : 863,778.00 = 220,764.54 : x
  2. Step 2: Convert to fraction form
    575,778.20/863,778.00 = 220,764.54/x
  3. Step 3: Cross multiply
    575,778.20x = 863,778.00 × 220,764.54
  4. Step 4: Simplify right side
    575,778.20x = 190,691,550,420.82
  5. Step 5: Solve for x
    x = 190,691,550,420.82/575,778.20
  6. Step 6: Final answer
    x = 331,189.25

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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.