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Finding the Fourth Proportional to 675,468.90, 1,012,876.11 and 275,950.98

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Solution

The fourth proportional to 675,468.90, 1,012,876.11 and 275,950.98 is: 413,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,468.90 : 1,012,876.11 = 275,950.98 : x
  2. Step 2: Convert to fraction form
    675,468.90/1,012,876.11 = 275,950.98/x
  3. Step 3: Cross multiply
    675,468.90x = 1,012,876.11 × 275,950.98
  4. Step 4: Simplify right side
    675,468.90x = 279,504,155,173.09
  5. Step 5: Solve for x
    x = 279,504,155,173.09/675,468.90
  6. Step 6: Final answer
    x = 413,792.78

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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.