Home / 664,099.65-916,453.26-377,619.66

Finding the Fourth Proportional to 664,099.65, 916,453.26 and 377,619.66

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Solution

The fourth proportional to 664,099.65, 916,453.26 and 377,619.66 is: 521,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,099.65 : 916,453.26 = 377,619.66 : x
  2. Step 2: Convert to fraction form
    664,099.65/916,453.26 = 377,619.66/x
  3. Step 3: Cross multiply
    664,099.65x = 916,453.26 × 377,619.66
  4. Step 4: Simplify right side
    664,099.65x = 346,070,768,447.09
  5. Step 5: Solve for x
    x = 346,070,768,447.09/664,099.65
  6. Step 6: Final answer
    x = 521,112.71

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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.