Home / 945,357.21-1,305,231.77-727,178.45

Finding the Fourth Proportional to 945,357.21, 1,305,231.77 and 727,178.45

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Solution

The fourth proportional to 945,357.21, 1,305,231.77 and 727,178.45 is: 1,003,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,357.21 : 1,305,231.77 = 727,178.45 : x
  2. Step 2: Convert to fraction form
    945,357.21/1,305,231.77 = 727,178.45/x
  3. Step 3: Cross multiply
    945,357.21x = 1,305,231.77 × 727,178.45
  4. Step 4: Simplify right side
    945,357.21x = 949,136,410,691.14
  5. Step 5: Solve for x
    x = 949,136,410,691.14/945,357.21
  6. Step 6: Final answer
    x = 1,003,997.64

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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.