Home / 439,713.39-605,975.18-352,399.33

Finding the Fourth Proportional to 439,713.39, 605,975.18 and 352,399.33

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Solution

The fourth proportional to 439,713.39, 605,975.18 and 352,399.33 is: 485,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,713.39 : 605,975.18 = 352,399.33 : x
  2. Step 2: Convert to fraction form
    439,713.39/605,975.18 = 352,399.33/x
  3. Step 3: Cross multiply
    439,713.39x = 605,975.18 × 352,399.33
  4. Step 4: Simplify right side
    439,713.39x = 213,545,247,428.63
  5. Step 5: Solve for x
    x = 213,545,247,428.63/439,713.39
  6. Step 6: Final answer
    x = 485,646.45

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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.