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Finding the Fourth Proportional to 351,273.80, 526,909.92 and 271,427.87

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Solution

The fourth proportional to 351,273.80, 526,909.92 and 271,427.87 is: 407,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,273.80 : 526,909.92 = 271,427.87 : x
  2. Step 2: Convert to fraction form
    351,273.80/526,909.92 = 271,427.87/x
  3. Step 3: Cross multiply
    351,273.80x = 526,909.92 × 271,427.87
  4. Step 4: Simplify right side
    351,273.80x = 143,018,037,267.47
  5. Step 5: Solve for x
    x = 143,018,037,267.47/351,273.80
  6. Step 6: Final answer
    x = 407,141.20

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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.