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Finding the Fourth Proportional to 543,833.93, 815,771.39 and 206,811.77

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Solution

The fourth proportional to 543,833.93, 815,771.39 and 206,811.77 is: 310,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,833.93 : 815,771.39 = 206,811.77 : x
  2. Step 2: Convert to fraction form
    543,833.93/815,771.39 = 206,811.77/x
  3. Step 3: Cross multiply
    543,833.93x = 815,771.39 × 206,811.77
  4. Step 4: Simplify right side
    543,833.93x = 168,711,119,968.35
  5. Step 5: Solve for x
    x = 168,711,119,968.35/543,833.93
  6. Step 6: Final answer
    x = 310,225.44

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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.