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Finding the Fourth Proportional to 568,111.45, 853,302.12 and 355,258.03

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Solution

The fourth proportional to 568,111.45, 853,302.12 and 355,258.03 is: 533,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,111.45 : 853,302.12 = 355,258.03 : x
  2. Step 2: Convert to fraction form
    568,111.45/853,302.12 = 355,258.03/x
  3. Step 3: Cross multiply
    568,111.45x = 853,302.12 × 355,258.03
  4. Step 4: Simplify right side
    568,111.45x = 303,142,424,103.22
  5. Step 5: Solve for x
    x = 303,142,424,103.22/568,111.45
  6. Step 6: Final answer
    x = 533,596.76

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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.