Home / 759,408.45-1,138,943.77-219,546.81

Finding the Fourth Proportional to 759,408.45, 1,138,943.77 and 219,546.81

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Solution

The fourth proportional to 759,408.45, 1,138,943.77 and 219,546.81 is: 329,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,408.45 : 1,138,943.77 = 219,546.81 : x
  2. Step 2: Convert to fraction form
    759,408.45/1,138,943.77 = 219,546.81/x
  3. Step 3: Cross multiply
    759,408.45x = 1,138,943.77 × 219,546.81
  4. Step 4: Simplify right side
    759,408.45x = 250,051,471,472.87
  5. Step 5: Solve for x
    x = 250,051,471,472.87/759,408.45
  6. Step 6: Final answer
    x = 329,271.38

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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.