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Finding the Fourth Proportional to 365,928.76, 504,920.62 and 215,054.84

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Solution

The fourth proportional to 365,928.76, 504,920.62 and 215,054.84 is: 296,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,928.76 : 504,920.62 = 215,054.84 : x
  2. Step 2: Convert to fraction form
    365,928.76/504,920.62 = 215,054.84/x
  3. Step 3: Cross multiply
    365,928.76x = 504,920.62 × 215,054.84
  4. Step 4: Simplify right side
    365,928.76x = 108,585,623,146.80
  5. Step 5: Solve for x
    x = 108,585,623,146.80/365,928.76
  6. Step 6: Final answer
    x = 296,739.79

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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.