Home / 1,328,861.40-1,993,292.10-618,961.20

Finding the Fourth Proportional to 1,328,861.40, 1,993,292.10 and 618,961.20

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Solution

The fourth proportional to 1,328,861.40, 1,993,292.10 and 618,961.20 is: 928,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,861.40 : 1,993,292.10 = 618,961.20 : x
  2. Step 2: Convert to fraction form
    1,328,861.40/1,993,292.10 = 618,961.20/x
  3. Step 3: Cross multiply
    1,328,861.40x = 1,993,292.10 × 618,961.20
  4. Step 4: Simplify right side
    1,328,861.40x = 1,233,770,470,166.52
  5. Step 5: Solve for x
    x = 1,233,770,470,166.52/1,328,861.40
  6. Step 6: Final answer
    x = 928,441.80

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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.