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Finding the Fourth Proportional to 351,276.62, 526,914.14 and 271,430.69

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Solution

The fourth proportional to 351,276.62, 526,914.14 and 271,430.69 is: 407,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,276.62 : 526,914.14 = 271,430.69 : x
  2. Step 2: Convert to fraction form
    351,276.62/526,914.14 = 271,430.69/x
  3. Step 3: Cross multiply
    351,276.62x = 526,914.14 × 271,430.69
  4. Step 4: Simplify right side
    351,276.62x = 143,020,665,956.39
  5. Step 5: Solve for x
    x = 143,020,665,956.39/351,276.62
  6. Step 6: Final answer
    x = 407,145.42

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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.