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Finding the Fourth Proportional to 486,662.93, 671,528.50 and 271,775.60

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Solution

The fourth proportional to 486,662.93, 671,528.50 and 271,775.60 is: 375,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,662.93 : 671,528.50 = 271,775.60 : x
  2. Step 2: Convert to fraction form
    486,662.93/671,528.50 = 271,775.60/x
  3. Step 3: Cross multiply
    486,662.93x = 671,528.50 × 271,775.60
  4. Step 4: Simplify right side
    486,662.93x = 182,505,056,967.52
  5. Step 5: Solve for x
    x = 182,505,056,967.52/486,662.93
  6. Step 6: Final answer
    x = 375,013.27

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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.