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Finding the Fourth Proportional to 385,896.95, 532,577.21 and 222,559.83

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Solution

The fourth proportional to 385,896.95, 532,577.21 and 222,559.83 is: 307,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,896.95 : 532,577.21 = 222,559.83 : x
  2. Step 2: Convert to fraction form
    385,896.95/532,577.21 = 222,559.83/x
  3. Step 3: Cross multiply
    385,896.95x = 532,577.21 × 222,559.83
  4. Step 4: Simplify right side
    385,896.95x = 118,530,292,899.63
  5. Step 5: Solve for x
    x = 118,530,292,899.63/385,896.95
  6. Step 6: Final answer
    x = 307,155.30

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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.