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Finding the Fourth Proportional to 448,591.97, 672,555.81 and 271,057.46

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Solution

The fourth proportional to 448,591.97, 672,555.81 and 271,057.46 is: 406,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,591.97 : 672,555.81 = 271,057.46 : x
  2. Step 2: Convert to fraction form
    448,591.97/672,555.81 = 271,057.46/x
  3. Step 3: Cross multiply
    448,591.97x = 672,555.81 × 271,057.46
  4. Step 4: Simplify right side
    448,591.97x = 182,301,271,370.52
  5. Step 5: Solve for x
    x = 182,301,271,370.52/448,591.97
  6. Step 6: Final answer
    x = 406,385.50

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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.