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Finding the Fourth Proportional to 344,456.64, 475,352.70 and 189,410.64

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Solution

The fourth proportional to 344,456.64, 475,352.70 and 189,410.64 is: 261,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,456.64 : 475,352.70 = 189,410.64 : x
  2. Step 2: Convert to fraction form
    344,456.64/475,352.70 = 189,410.64/x
  3. Step 3: Cross multiply
    344,456.64x = 475,352.70 × 189,410.64
  4. Step 4: Simplify right side
    344,456.64x = 90,036,859,132.73
  5. Step 5: Solve for x
    x = 90,036,859,132.73/344,456.64
  6. Step 6: Final answer
    x = 261,388.08

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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.