Home / 1,328,919.20-1,993,670.40-655,323.20

Finding the Fourth Proportional to 1,328,919.20, 1,993,670.40 and 655,323.20

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Solution

The fourth proportional to 1,328,919.20, 1,993,670.40 and 655,323.20 is: 983,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,919.20 : 1,993,670.40 = 655,323.20 : x
  2. Step 2: Convert to fraction form
    1,328,919.20/1,993,670.40 = 655,323.20/x
  3. Step 3: Cross multiply
    1,328,919.20x = 1,993,670.40 × 655,323.20
  4. Step 4: Simplify right side
    1,328,919.20x = 1,306,498,466,273.28
  5. Step 5: Solve for x
    x = 1,306,498,466,273.28/1,328,919.20
  6. Step 6: Final answer
    x = 983,128.60

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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.