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Finding the Fourth Proportional to 351,739.78, 527,609.88 and 247,026.22

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Solution

The fourth proportional to 351,739.78, 527,609.88 and 247,026.22 is: 370,539.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,739.78 : 527,609.88 = 247,026.22 : x
  2. Step 2: Convert to fraction form
    351,739.78/527,609.88 = 247,026.22/x
  3. Step 3: Cross multiply
    351,739.78x = 527,609.88 × 247,026.22
  4. Step 4: Simplify right side
    351,739.78x = 130,333,474,291.05
  5. Step 5: Solve for x
    x = 130,333,474,291.05/351,739.78
  6. Step 6: Final answer
    x = 370,539.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.