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Finding the Fourth Proportional to 400,672.56, 552,954.96 and 230,918.16

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Solution

The fourth proportional to 400,672.56, 552,954.96 and 230,918.16 is: 318,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,672.56 : 552,954.96 = 230,918.16 : x
  2. Step 2: Convert to fraction form
    400,672.56/552,954.96 = 230,918.16/x
  3. Step 3: Cross multiply
    400,672.56x = 552,954.96 × 230,918.16
  4. Step 4: Simplify right side
    400,672.56x = 127,687,341,926.07
  5. Step 5: Solve for x
    x = 127,687,341,926.07/400,672.56
  6. Step 6: Final answer
    x = 318,682.52

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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.