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Finding the Fourth Proportional to 1,945,448.03, 2,919,951.89 and 986,565.44

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Solution

The fourth proportional to 1,945,448.03, 2,919,951.89 and 986,565.44 is: 1,480,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,448.03 : 2,919,951.89 = 986,565.44 : x
  2. Step 2: Convert to fraction form
    1,945,448.03/2,919,951.89 = 986,565.44/x
  3. Step 3: Cross multiply
    1,945,448.03x = 2,919,951.89 × 986,565.44
  4. Step 4: Simplify right side
    1,945,448.03x = 2,880,723,601,604.10
  5. Step 5: Solve for x
    x = 2,880,723,601,604.10/1,945,448.03
  6. Step 6: Final answer
    x = 1,480,750.74

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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.