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Finding the Fourth Proportional to 429,879.48, 593,221.20 and 246,111.90

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Solution

The fourth proportional to 429,879.48, 593,221.20 and 246,111.90 is: 339,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,879.48 : 593,221.20 = 246,111.90 : x
  2. Step 2: Convert to fraction form
    429,879.48/593,221.20 = 246,111.90/x
  3. Step 3: Cross multiply
    429,879.48x = 593,221.20 × 246,111.90
  4. Step 4: Simplify right side
    429,879.48x = 145,998,796,652.28
  5. Step 5: Solve for x
    x = 145,998,796,652.28/429,879.48
  6. Step 6: Final answer
    x = 339,627.28

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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.