Home / 1,786,279.53-2,679,421.44-489,443

Finding the Fourth Proportional to 1,786,279.53, 2,679,421.44 and 489,443

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Solution

The fourth proportional to 1,786,279.53, 2,679,421.44 and 489,443 is: 734,165.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,279.53 : 2,679,421.44 = 489,443 : x
  2. Step 2: Convert to fraction form
    1,786,279.53/2,679,421.44 = 489,443/x
  3. Step 3: Cross multiply
    1,786,279.53x = 2,679,421.44 × 489,443
  4. Step 4: Simplify right side
    1,786,279.53x = 1,311,424,067,857.92
  5. Step 5: Solve for x
    x = 1,311,424,067,857.92/1,786,279.53
  6. Step 6: Final answer
    x = 734,165.09

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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.