Home / 809,372.80-1,214,059.20-277,046.20

Finding the Fourth Proportional to 809,372.80, 1,214,059.20 and 277,046.20

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Solution

The fourth proportional to 809,372.80, 1,214,059.20 and 277,046.20 is: 415,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,372.80 : 1,214,059.20 = 277,046.20 : x
  2. Step 2: Convert to fraction form
    809,372.80/1,214,059.20 = 277,046.20/x
  3. Step 3: Cross multiply
    809,372.80x = 1,214,059.20 × 277,046.20
  4. Step 4: Simplify right side
    809,372.80x = 336,350,487,935.04
  5. Step 5: Solve for x
    x = 336,350,487,935.04/809,372.80
  6. Step 6: Final answer
    x = 415,569.30

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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.