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Finding the Fourth Proportional to 412,745.18, 569,347.02 and 259,540.90

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Solution

The fourth proportional to 412,745.18, 569,347.02 and 259,540.90 is: 358,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,745.18 : 569,347.02 = 259,540.90 : x
  2. Step 2: Convert to fraction form
    412,745.18/569,347.02 = 259,540.90/x
  3. Step 3: Cross multiply
    412,745.18x = 569,347.02 × 259,540.90
  4. Step 4: Simplify right side
    412,745.18x = 147,768,837,983.12
  5. Step 5: Solve for x
    x = 147,768,837,983.12/412,745.18
  6. Step 6: Final answer
    x = 358,014.69

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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.