Home / 628,668.73-867,581.41-445,235.47

Finding the Fourth Proportional to 628,668.73, 867,581.41 and 445,235.47

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Solution

The fourth proportional to 628,668.73, 867,581.41 and 445,235.47 is: 614,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,668.73 : 867,581.41 = 445,235.47 : x
  2. Step 2: Convert to fraction form
    628,668.73/867,581.41 = 445,235.47/x
  3. Step 3: Cross multiply
    628,668.73x = 867,581.41 × 445,235.47
  4. Step 4: Simplify right side
    628,668.73x = 386,278,016,844.61
  5. Step 5: Solve for x
    x = 386,278,016,844.61/628,668.73
  6. Step 6: Final answer
    x = 614,438.09

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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.