Home / 540,403.03-809,949.11-396,917.85

Finding the Fourth Proportional to 540,403.03, 809,949.11 and 396,917.85

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Solution

The fourth proportional to 540,403.03, 809,949.11 and 396,917.85 is: 594,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,403.03 : 809,949.11 = 396,917.85 : x
  2. Step 2: Convert to fraction form
    540,403.03/809,949.11 = 396,917.85/x
  3. Step 3: Cross multiply
    540,403.03x = 809,949.11 × 396,917.85
  4. Step 4: Simplify right side
    540,403.03x = 321,483,259,350.61
  5. Step 5: Solve for x
    x = 321,483,259,350.61/540,403.03
  6. Step 6: Final answer
    x = 594,895.37

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1.5x scale

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.