Home / 579,064.08-868,712.18-199,998.72

Finding the Fourth Proportional to 579,064.08, 868,712.18 and 199,998.72

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Solution

The fourth proportional to 579,064.08, 868,712.18 and 199,998.72 is: 300,038.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,064.08 : 868,712.18 = 199,998.72 : x
  2. Step 2: Convert to fraction form
    579,064.08/868,712.18 = 199,998.72/x
  3. Step 3: Cross multiply
    579,064.08x = 868,712.18 × 199,998.72
  4. Step 4: Simplify right side
    579,064.08x = 173,741,324,048.41
  5. Step 5: Solve for x
    x = 173,741,324,048.41/579,064.08
  6. Step 6: Final answer
    x = 300,038.17

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Double scale
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Similar ratio
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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.