Home / 718,232.20-991,163.44-395,935.22

Finding the Fourth Proportional to 718,232.20, 991,163.44 and 395,935.22

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Solution

The fourth proportional to 718,232.20, 991,163.44 and 395,935.22 is: 546,392.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,232.20 : 991,163.44 = 395,935.22 : x
  2. Step 2: Convert to fraction form
    718,232.20/991,163.44 = 395,935.22/x
  3. Step 3: Cross multiply
    718,232.20x = 991,163.44 × 395,935.22
  4. Step 4: Simplify right side
    718,232.20x = 392,436,514,672.36
  5. Step 5: Solve for x
    x = 392,436,514,672.36/718,232.20
  6. Step 6: Final answer
    x = 546,392.26

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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.