Home / 419,954.14-579,551.30-238,673.72

Finding the Fourth Proportional to 419,954.14, 579,551.30 and 238,673.72

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Solution

The fourth proportional to 419,954.14, 579,551.30 and 238,673.72 is: 329,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,954.14 : 579,551.30 = 238,673.72 : x
  2. Step 2: Convert to fraction form
    419,954.14/579,551.30 = 238,673.72/x
  3. Step 3: Cross multiply
    419,954.14x = 579,551.30 × 238,673.72
  4. Step 4: Simplify right side
    419,954.14x = 138,323,664,701.84
  5. Step 5: Solve for x
    x = 138,323,664,701.84/419,954.14
  6. Step 6: Final answer
    x = 329,378.02

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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.