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Finding the Fourth Proportional to 673,617.52, 929,593.02 and 371,811.52

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Solution

The fourth proportional to 673,617.52, 929,593.02 and 371,811.52 is: 513,100.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,617.52 : 929,593.02 = 371,811.52 : x
  2. Step 2: Convert to fraction form
    673,617.52/929,593.02 = 371,811.52/x
  3. Step 3: Cross multiply
    673,617.52x = 929,593.02 × 371,811.52
  4. Step 4: Simplify right side
    673,617.52x = 345,633,393,747.59
  5. Step 5: Solve for x
    x = 345,633,393,747.59/673,617.52
  6. Step 6: Final answer
    x = 513,100.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.