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Finding the Fourth Proportional to 445,766.80, 667,666.05 and 367,034.80

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Solution

The fourth proportional to 445,766.80, 667,666.05 and 367,034.80 is: 549,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,766.80 : 667,666.05 = 367,034.80 : x
  2. Step 2: Convert to fraction form
    445,766.80/667,666.05 = 367,034.80/x
  3. Step 3: Cross multiply
    445,766.80x = 667,666.05 × 367,034.80
  4. Step 4: Simplify right side
    445,766.80x = 245,056,675,128.54
  5. Step 5: Solve for x
    x = 245,056,675,128.54/445,766.80
  6. Step 6: Final answer
    x = 549,741.87

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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.