Home / 579,085.28-868,743.80-200,019.86

Finding the Fourth Proportional to 579,085.28, 868,743.80 and 200,019.86

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Solution

The fourth proportional to 579,085.28, 868,743.80 and 200,019.86 is: 300,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,085.28 : 868,743.80 = 200,019.86 : x
  2. Step 2: Convert to fraction form
    579,085.28/868,743.80 = 200,019.86/x
  3. Step 3: Cross multiply
    579,085.28x = 868,743.80 × 200,019.86
  4. Step 4: Simplify right side
    579,085.28x = 173,766,013,251.87
  5. Step 5: Solve for x
    x = 173,766,013,251.87/579,085.28
  6. Step 6: Final answer
    x = 300,069.82

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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.