Home / 501,434.45-691,975.44-271,991.16

Finding the Fourth Proportional to 501,434.45, 691,975.44 and 271,991.16

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Solution

The fourth proportional to 501,434.45, 691,975.44 and 271,991.16 is: 375,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,434.45 : 691,975.44 = 271,991.16 : x
  2. Step 2: Convert to fraction form
    501,434.45/691,975.44 = 271,991.16/x
  3. Step 3: Cross multiply
    501,434.45x = 691,975.44 × 271,991.16
  4. Step 4: Simplify right side
    501,434.45x = 188,211,203,297.09
  5. Step 5: Solve for x
    x = 188,211,203,297.09/501,434.45
  6. Step 6: Final answer
    x = 375,345.58

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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.