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Finding the Fourth Proportional to 497,073.26, 685,936.68 and 282,185.12

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Solution

The fourth proportional to 497,073.26, 685,936.68 and 282,185.12 is: 389,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,073.26 : 685,936.68 = 282,185.12 : x
  2. Step 2: Convert to fraction form
    497,073.26/685,936.68 = 282,185.12/x
  3. Step 3: Cross multiply
    497,073.26x = 685,936.68 × 282,185.12
  4. Step 4: Simplify right side
    497,073.26x = 193,561,124,358.20
  5. Step 5: Solve for x
    x = 193,561,124,358.20/497,073.26
  6. Step 6: Final answer
    x = 389,401.60

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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.