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Finding the Fourth Proportional to 351,398.77, 526,546.21 and 271,632.19

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Solution

The fourth proportional to 351,398.77, 526,546.21 and 271,632.19 is: 407,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,398.77 : 526,546.21 = 271,632.19 : x
  2. Step 2: Convert to fraction form
    351,398.77/526,546.21 = 271,632.19/x
  3. Step 3: Cross multiply
    351,398.77x = 526,546.21 × 271,632.19
  4. Step 4: Simplify right side
    351,398.77x = 143,026,900,158.50
  5. Step 5: Solve for x
    x = 143,026,900,158.50/351,398.77
  6. Step 6: Final answer
    x = 407,021.63

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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.