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Finding the Fourth Proportional to 412,751.13, 568,825.28 and 321,963.29

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Solution

The fourth proportional to 412,751.13, 568,825.28 and 321,963.29 is: 443,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,751.13 : 568,825.28 = 321,963.29 : x
  2. Step 2: Convert to fraction form
    412,751.13/568,825.28 = 321,963.29/x
  3. Step 3: Cross multiply
    412,751.13x = 568,825.28 × 321,963.29
  4. Step 4: Simplify right side
    412,751.13x = 183,140,854,130.03
  5. Step 5: Solve for x
    x = 183,140,854,130.03/412,751.13
  6. Step 6: Final answer
    x = 443,707.70

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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.