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Finding the Fourth Proportional to 475,920.36, 656,763.90 and 271,968.96

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Solution

The fourth proportional to 475,920.36, 656,763.90 and 271,968.96 is: 375,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,920.36 : 656,763.90 = 271,968.96 : x
  2. Step 2: Convert to fraction form
    475,920.36/656,763.90 = 271,968.96/x
  3. Step 3: Cross multiply
    475,920.36x = 656,763.90 × 271,968.96
  4. Step 4: Simplify right side
    475,920.36x = 178,619,394,848.54
  5. Step 5: Solve for x
    x = 178,619,394,848.54/475,920.36
  6. Step 6: Final answer
    x = 375,313.62

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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.