Home / 579,097.20-868,415.40-204,927.60

Finding the Fourth Proportional to 579,097.20, 868,415.40 and 204,927.60

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Solution

The fourth proportional to 579,097.20, 868,415.40 and 204,927.60 is: 307,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,097.20 : 868,415.40 = 204,927.60 : x
  2. Step 2: Convert to fraction form
    579,097.20/868,415.40 = 204,927.60/x
  3. Step 3: Cross multiply
    579,097.20x = 868,415.40 × 204,927.60
  4. Step 4: Simplify right side
    579,097.20x = 177,962,283,725.04
  5. Step 5: Solve for x
    x = 177,962,283,725.04/579,097.20
  6. Step 6: Final answer
    x = 307,309.87

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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.