Home / 421,905.51-582,229.59-230,918.90

Finding the Fourth Proportional to 421,905.51, 582,229.59 and 230,918.90

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Solution

The fourth proportional to 421,905.51, 582,229.59 and 230,918.90 is: 318,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,905.51 : 582,229.59 = 230,918.90 : x
  2. Step 2: Convert to fraction form
    421,905.51/582,229.59 = 230,918.90/x
  3. Step 3: Cross multiply
    421,905.51x = 582,229.59 × 230,918.90
  4. Step 4: Simplify right side
    421,905.51x = 134,447,813,559.10
  5. Step 5: Solve for x
    x = 134,447,813,559.10/421,905.51
  6. Step 6: Final answer
    x = 318,668.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.