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Finding the Fourth Proportional to 223,617.82, 308,890.18 and 220,364.68

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Solution

The fourth proportional to 223,617.82, 308,890.18 and 220,364.68 is: 304,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,617.82 : 308,890.18 = 220,364.68 : x
  2. Step 2: Convert to fraction form
    223,617.82/308,890.18 = 220,364.68/x
  3. Step 3: Cross multiply
    223,617.82x = 308,890.18 × 220,364.68
  4. Step 4: Simplify right side
    223,617.82x = 68,068,485,670.84
  5. Step 5: Solve for x
    x = 68,068,485,670.84/223,617.82
  6. Step 6: Final answer
    x = 304,396.52

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1.5x scale

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.