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Finding the Fourth Proportional to 401,016.13, 601,344.38 and 238,986.70

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Solution

The fourth proportional to 401,016.13, 601,344.38 and 238,986.70 is: 358,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,016.13 : 601,344.38 = 238,986.70 : x
  2. Step 2: Convert to fraction form
    401,016.13/601,344.38 = 238,986.70/x
  3. Step 3: Cross multiply
    401,016.13x = 601,344.38 × 238,986.70
  4. Step 4: Simplify right side
    401,016.13x = 143,713,306,010.13
  5. Step 5: Solve for x
    x = 143,713,306,010.13/401,016.13
  6. Step 6: Final answer
    x = 358,372.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.