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Finding the Fourth Proportional to 417,994.55, 577,071.57 and 275,169.77

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Solution

The fourth proportional to 417,994.55, 577,071.57 and 275,169.77 is: 379,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,994.55 : 577,071.57 = 275,169.77 : x
  2. Step 2: Convert to fraction form
    417,994.55/577,071.57 = 275,169.77/x
  3. Step 3: Cross multiply
    417,994.55x = 577,071.57 × 275,169.77
  4. Step 4: Simplify right side
    417,994.55x = 158,792,651,190.44
  5. Step 5: Solve for x
    x = 158,792,651,190.44/417,994.55
  6. Step 6: Final answer
    x = 379,891.68

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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.