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Finding the Fourth Proportional to 587,641.73, 881,711.64 and 321,090.83

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Solution

The fourth proportional to 587,641.73, 881,711.64 and 321,090.83 is: 481,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,641.73 : 881,711.64 = 321,090.83 : x
  2. Step 2: Convert to fraction form
    587,641.73/881,711.64 = 321,090.83/x
  3. Step 3: Cross multiply
    587,641.73x = 881,711.64 × 321,090.83
  4. Step 4: Simplify right side
    587,641.73x = 283,109,522,308.26
  5. Step 5: Solve for x
    x = 283,109,522,308.26/587,641.73
  6. Step 6: Final answer
    x = 481,772.32

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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.