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Finding the Fourth Proportional to 279,569.40, 419,354.10 and 241,515.60

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Solution

The fourth proportional to 279,569.40, 419,354.10 and 241,515.60 is: 362,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,569.40 : 419,354.10 = 241,515.60 : x
  2. Step 2: Convert to fraction form
    279,569.40/419,354.10 = 241,515.60/x
  3. Step 3: Cross multiply
    279,569.40x = 419,354.10 × 241,515.60
  4. Step 4: Simplify right side
    279,569.40x = 101,280,557,073.96
  5. Step 5: Solve for x
    x = 101,280,557,073.96/279,569.40
  6. Step 6: Final answer
    x = 362,273.40

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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.