Home / 809,505.70-1,214,258.55-573,115.30

Finding the Fourth Proportional to 809,505.70, 1,214,258.55 and 573,115.30

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Solution

The fourth proportional to 809,505.70, 1,214,258.55 and 573,115.30 is: 859,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,505.70 : 1,214,258.55 = 573,115.30 : x
  2. Step 2: Convert to fraction form
    809,505.70/1,214,258.55 = 573,115.30/x
  3. Step 3: Cross multiply
    809,505.70x = 1,214,258.55 × 573,115.30
  4. Step 4: Simplify right side
    809,505.70x = 695,910,153,160.82
  5. Step 5: Solve for x
    x = 695,910,153,160.82/809,505.70
  6. Step 6: Final answer
    x = 859,672.95

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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.