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Finding the Fourth Proportional to 383,605.80, 576,064.80 and 251,073.60

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Solution

The fourth proportional to 383,605.80, 576,064.80 and 251,073.60 is: 377,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,605.80 : 576,064.80 = 251,073.60 : x
  2. Step 2: Convert to fraction form
    383,605.80/576,064.80 = 251,073.60/x
  3. Step 3: Cross multiply
    383,605.80x = 576,064.80 × 251,073.60
  4. Step 4: Simplify right side
    383,605.80x = 144,634,663,169.28
  5. Step 5: Solve for x
    x = 144,634,663,169.28/383,605.80
  6. Step 6: Final answer
    x = 377,039.82

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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.