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Finding the Fourth Proportional to 1,154,974.80, 1,731,943.80 and 444,766.80

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Solution

The fourth proportional to 1,154,974.80, 1,731,943.80 and 444,766.80 is: 666,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,974.80 : 1,731,943.80 = 444,766.80 : x
  2. Step 2: Convert to fraction form
    1,154,974.80/1,731,943.80 = 444,766.80/x
  3. Step 3: Cross multiply
    1,154,974.80x = 1,731,943.80 × 444,766.80
  4. Step 4: Simplify right side
    1,154,974.80x = 770,311,101,705.84
  5. Step 5: Solve for x
    x = 770,311,101,705.84/1,154,974.80
  6. Step 6: Final answer
    x = 666,950.57

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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.