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Finding the Fourth Proportional to 463,866.57, 639,860.99 and 293,805.45

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Solution

The fourth proportional to 463,866.57, 639,860.99 and 293,805.45 is: 405,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,866.57 : 639,860.99 = 293,805.45 : x
  2. Step 2: Convert to fraction form
    463,866.57/639,860.99 = 293,805.45/x
  3. Step 3: Cross multiply
    463,866.57x = 639,860.99 × 293,805.45
  4. Step 4: Simplify right side
    463,866.57x = 187,994,644,635.37
  5. Step 5: Solve for x
    x = 187,994,644,635.37/463,866.57
  6. Step 6: Final answer
    x = 405,277.42

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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.