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Finding the Fourth Proportional to 361,957.08, 499,478.22 and 218,632.44

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Solution

The fourth proportional to 361,957.08, 499,478.22 and 218,632.44 is: 301,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,957.08 : 499,478.22 = 218,632.44 : x
  2. Step 2: Convert to fraction form
    361,957.08/499,478.22 = 218,632.44/x
  3. Step 3: Cross multiply
    361,957.08x = 499,478.22 × 218,632.44
  4. Step 4: Simplify right side
    361,957.08x = 109,202,141,965.46
  5. Step 5: Solve for x
    x = 109,202,141,965.46/361,957.08
  6. Step 6: Final answer
    x = 301,699.15

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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.