Home / 689,020.20-1,033,553.36-239,778.80

Finding the Fourth Proportional to 689,020.20, 1,033,553.36 and 239,778.80

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Solution

The fourth proportional to 689,020.20, 1,033,553.36 and 239,778.80 is: 359,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,020.20 : 1,033,553.36 = 239,778.80 : x
  2. Step 2: Convert to fraction form
    689,020.20/1,033,553.36 = 239,778.80/x
  3. Step 3: Cross multiply
    689,020.20x = 1,033,553.36 × 239,778.80
  4. Step 4: Simplify right side
    689,020.20x = 247,824,184,396.77
  5. Step 5: Solve for x
    x = 247,824,184,396.77/689,020.20
  6. Step 6: Final answer
    x = 359,676.22

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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.