Home / 579,119.20-868,678.80-205,093.60

Finding the Fourth Proportional to 579,119.20, 868,678.80 and 205,093.60

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Solution

The fourth proportional to 579,119.20, 868,678.80 and 205,093.60 is: 307,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,119.20 : 868,678.80 = 205,093.60 : x
  2. Step 2: Convert to fraction form
    579,119.20/868,678.80 = 205,093.60/x
  3. Step 3: Cross multiply
    579,119.20x = 868,678.80 × 205,093.60
  4. Step 4: Simplify right side
    579,119.20x = 178,160,462,335.68
  5. Step 5: Solve for x
    x = 178,160,462,335.68/579,119.20
  6. Step 6: Final answer
    x = 307,640.40

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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.