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Finding the Fourth Proportional to 978,244.20, 1,467,366.30 and 673,813.80

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Solution

The fourth proportional to 978,244.20, 1,467,366.30 and 673,813.80 is: 1,010,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,244.20 : 1,467,366.30 = 673,813.80 : x
  2. Step 2: Convert to fraction form
    978,244.20/1,467,366.30 = 673,813.80/x
  3. Step 3: Cross multiply
    978,244.20x = 1,467,366.30 × 673,813.80
  4. Step 4: Simplify right side
    978,244.20x = 988,731,662,594.94
  5. Step 5: Solve for x
    x = 988,731,662,594.94/978,244.20
  6. Step 6: Final answer
    x = 1,010,720.70

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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.