Home / 729,012.22-1,006,037.49-406,722.37

Finding the Fourth Proportional to 729,012.22, 1,006,037.49 and 406,722.37

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Solution

The fourth proportional to 729,012.22, 1,006,037.49 and 406,722.37 is: 561,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,012.22 : 1,006,037.49 = 406,722.37 : x
  2. Step 2: Convert to fraction form
    729,012.22/1,006,037.49 = 406,722.37/x
  3. Step 3: Cross multiply
    729,012.22x = 1,006,037.49 × 406,722.37
  4. Step 4: Simplify right side
    729,012.22x = 409,177,952,241.65
  5. Step 5: Solve for x
    x = 409,177,952,241.65/729,012.22
  6. Step 6: Final answer
    x = 561,277.22

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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.