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Finding the Fourth Proportional to 452,606.49, 678,909.62 and 115,647.77

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Solution

The fourth proportional to 452,606.49, 678,909.62 and 115,647.77 is: 173,471.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,606.49 : 678,909.62 = 115,647.77 : x
  2. Step 2: Convert to fraction form
    452,606.49/678,909.62 = 115,647.77/x
  3. Step 3: Cross multiply
    452,606.49x = 678,909.62 × 115,647.77
  4. Step 4: Simplify right side
    452,606.49x = 78,514,383,584.55
  5. Step 5: Solve for x
    x = 78,514,383,584.55/452,606.49
  6. Step 6: Final answer
    x = 173,471.63

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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.