Home / 579,064.06-868,712.20-199,998.70

Finding the Fourth Proportional to 579,064.06, 868,712.20 and 199,998.70

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Solution

The fourth proportional to 579,064.06, 868,712.20 and 199,998.70 is: 300,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,064.06 : 868,712.20 = 199,998.70 : x
  2. Step 2: Convert to fraction form
    579,064.06/868,712.20 = 199,998.70/x
  3. Step 3: Cross multiply
    579,064.06x = 868,712.20 × 199,998.70
  4. Step 4: Simplify right side
    579,064.06x = 173,741,310,674.14
  5. Step 5: Solve for x
    x = 173,741,310,674.14/579,064.06
  6. Step 6: Final answer
    x = 300,038.15

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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.