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Finding the Fourth Proportional to 325,419.40, 487,610.70 and 241,438.60

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Solution

The fourth proportional to 325,419.40, 487,610.70 and 241,438.60 is: 361,773.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,419.40 : 487,610.70 = 241,438.60 : x
  2. Step 2: Convert to fraction form
    325,419.40/487,610.70 = 241,438.60/x
  3. Step 3: Cross multiply
    325,419.40x = 487,610.70 × 241,438.60
  4. Step 4: Simplify right side
    325,419.40x = 117,728,044,753.02
  5. Step 5: Solve for x
    x = 117,728,044,753.02/325,419.40
  6. Step 6: Final answer
    x = 361,773.28

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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.