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Finding the Fourth Proportional to 474,285.56, 654,519.22 and 259,420.90

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Solution

The fourth proportional to 474,285.56, 654,519.22 and 259,420.90 is: 358,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,285.56 : 654,519.22 = 259,420.90 : x
  2. Step 2: Convert to fraction form
    474,285.56/654,519.22 = 259,420.90/x
  3. Step 3: Cross multiply
    474,285.56x = 654,519.22 × 259,420.90
  4. Step 4: Simplify right side
    474,285.56x = 169,795,965,119.70
  5. Step 5: Solve for x
    x = 169,795,965,119.70/474,285.56
  6. Step 6: Final answer
    x = 358,003.66

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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.