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Finding the Fourth Proportional to 1,945,798.26, 2,920,491.62 and 986,926.92

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Solution

The fourth proportional to 1,945,798.26, 2,920,491.62 and 986,926.92 is: 1,481,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,798.26 : 2,920,491.62 = 986,926.92 : x
  2. Step 2: Convert to fraction form
    1,945,798.26/2,920,491.62 = 986,926.92/x
  3. Step 3: Cross multiply
    1,945,798.26x = 2,920,491.62 × 986,926.92
  4. Step 4: Simplify right side
    1,945,798.26x = 2,882,311,799,412.41
  5. Step 5: Solve for x
    x = 2,882,311,799,412.41/1,945,798.26
  6. Step 6: Final answer
    x = 1,481,300.43

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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.