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Finding the Fourth Proportional to 445,763.80, 667,661.55 and 367,031.80

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Solution

The fourth proportional to 445,763.80, 667,661.55 and 367,031.80 is: 549,737.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,763.80 : 667,661.55 = 367,031.80 : x
  2. Step 2: Convert to fraction form
    445,763.80/667,661.55 = 367,031.80/x
  3. Step 3: Cross multiply
    445,763.80x = 667,661.55 × 367,031.80
  4. Step 4: Simplify right side
    445,763.80x = 245,053,020,487.29
  5. Step 5: Solve for x
    x = 245,053,020,487.29/445,763.80
  6. Step 6: Final answer
    x = 549,737.37

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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.