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Finding the Fourth Proportional to 552,617.72, 828,879.10 and 336,420.34

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Solution

The fourth proportional to 552,617.72, 828,879.10 and 336,420.34 is: 504,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,617.72 : 828,879.10 = 336,420.34 : x
  2. Step 2: Convert to fraction form
    552,617.72/828,879.10 = 336,420.34/x
  3. Step 3: Cross multiply
    552,617.72x = 828,879.10 × 336,420.34
  4. Step 4: Simplify right side
    552,617.72x = 278,851,786,673.83
  5. Step 5: Solve for x
    x = 278,851,786,673.83/552,617.72
  6. Step 6: Final answer
    x = 504,601.60

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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.