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Finding the Fourth Proportional to 484,692.63, 668,891.21 and 303,346.59

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Solution

The fourth proportional to 484,692.63, 668,891.21 and 303,346.59 is: 418,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,692.63 : 668,891.21 = 303,346.59 : x
  2. Step 2: Convert to fraction form
    484,692.63/668,891.21 = 303,346.59/x
  3. Step 3: Cross multiply
    484,692.63x = 668,891.21 × 303,346.59
  4. Step 4: Simplify right side
    484,692.63x = 202,905,867,634.47
  5. Step 5: Solve for x
    x = 202,905,867,634.47/484,692.63
  6. Step 6: Final answer
    x = 418,627.92

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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.