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Finding the Fourth Proportional to 552,241.56, 762,078.12 and 310,517.93

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Solution

The fourth proportional to 552,241.56, 762,078.12 and 310,517.93 is: 428,506.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,241.56 : 762,078.12 = 310,517.93 : x
  2. Step 2: Convert to fraction form
    552,241.56/762,078.12 = 310,517.93/x
  3. Step 3: Cross multiply
    552,241.56x = 762,078.12 × 310,517.93
  4. Step 4: Simplify right side
    552,241.56x = 236,638,916,510.30
  5. Step 5: Solve for x
    x = 236,638,916,510.30/552,241.56
  6. Step 6: Final answer
    x = 428,506.17

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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.