Home / 809,403.70-1,214,105.55-573,013.30

Finding the Fourth Proportional to 809,403.70, 1,214,105.55 and 573,013.30

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Solution

The fourth proportional to 809,403.70, 1,214,105.55 and 573,013.30 is: 859,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,403.70 : 1,214,105.55 = 573,013.30 : x
  2. Step 2: Convert to fraction form
    809,403.70/1,214,105.55 = 573,013.30/x
  3. Step 3: Cross multiply
    809,403.70x = 1,214,105.55 × 573,013.30
  4. Step 4: Simplify right side
    809,403.70x = 695,698,627,753.82
  5. Step 5: Solve for x
    x = 695,698,627,753.82/809,403.70
  6. Step 6: Final answer
    x = 859,519.95

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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.