Home / 945,356.96-1,305,231.46-727,178.20

Finding the Fourth Proportional to 945,356.96, 1,305,231.46 and 727,178.20

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Solution

The fourth proportional to 945,356.96, 1,305,231.46 and 727,178.20 is: 1,003,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,356.96 : 1,305,231.46 = 727,178.20 : x
  2. Step 2: Convert to fraction form
    945,356.96/1,305,231.46 = 727,178.20/x
  3. Step 3: Cross multiply
    945,356.96x = 1,305,231.46 × 727,178.20
  4. Step 4: Simplify right side
    945,356.96x = 949,135,863,666.17
  5. Step 5: Solve for x
    x = 949,135,863,666.17/945,356.96
  6. Step 6: Final answer
    x = 1,003,997.33

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.