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Finding the Fourth Proportional to 417,993.13, 577,069.63 and 275,168.36

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Solution

The fourth proportional to 417,993.13, 577,069.63 and 275,168.36 is: 379,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,993.13 : 577,069.63 = 275,168.36 : x
  2. Step 2: Convert to fraction form
    417,993.13/577,069.63 = 275,168.36/x
  3. Step 3: Cross multiply
    417,993.13x = 577,069.63 × 275,168.36
  4. Step 4: Simplify right side
    417,993.13x = 158,791,303,692.91
  5. Step 5: Solve for x
    x = 158,791,303,692.91/417,993.13
  6. Step 6: Final answer
    x = 379,889.75

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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.