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Finding the Fourth Proportional to 493,515.30, 681,053.29 and 267,160.80

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Solution

The fourth proportional to 493,515.30, 681,053.29 and 267,160.80 is: 368,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,515.30 : 681,053.29 = 267,160.80 : x
  2. Step 2: Convert to fraction form
    493,515.30/681,053.29 = 267,160.80/x
  3. Step 3: Cross multiply
    493,515.30x = 681,053.29 × 267,160.80
  4. Step 4: Simplify right side
    493,515.30x = 181,950,741,799.03
  5. Step 5: Solve for x
    x = 181,950,741,799.03/493,515.30
  6. Step 6: Final answer
    x = 368,683.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.