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Finding the Fourth Proportional to 440,811.80, 662,627.10 and 409,610.60

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Solution

The fourth proportional to 440,811.80, 662,627.10 and 409,610.60 is: 615,725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,811.80 : 662,627.10 = 409,610.60 : x
  2. Step 2: Convert to fraction form
    440,811.80/662,627.10 = 409,610.60/x
  3. Step 3: Cross multiply
    440,811.80x = 662,627.10 × 409,610.60
  4. Step 4: Simplify right side
    440,811.80x = 271,419,084,007.26
  5. Step 5: Solve for x
    x = 271,419,084,007.26/440,811.80
  6. Step 6: Final answer
    x = 615,725.54

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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.