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Finding the Fourth Proportional to 363,904.44, 545,955.48 and 206,243.62

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Solution

The fourth proportional to 363,904.44, 545,955.48 and 206,243.62 is: 309,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,904.44 : 545,955.48 = 206,243.62 : x
  2. Step 2: Convert to fraction form
    363,904.44/545,955.48 = 206,243.62/x
  3. Step 3: Cross multiply
    363,904.44x = 545,955.48 × 206,243.62
  4. Step 4: Simplify right side
    363,904.44x = 112,599,834,554.04
  5. Step 5: Solve for x
    x = 112,599,834,554.04/363,904.44
  6. Step 6: Final answer
    x = 309,421.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.