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Finding the Fourth Proportional to 539,193.60, 809,308.80 and 273,254.40

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Solution

The fourth proportional to 539,193.60, 809,308.80 and 273,254.40 is: 410,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,193.60 : 809,308.80 = 273,254.40 : x
  2. Step 2: Convert to fraction form
    539,193.60/809,308.80 = 273,254.40/x
  3. Step 3: Cross multiply
    539,193.60x = 809,308.80 × 273,254.40
  4. Step 4: Simplify right side
    539,193.60x = 221,147,190,558.72
  5. Step 5: Solve for x
    x = 221,147,190,558.72/539,193.60
  6. Step 6: Final answer
    x = 410,144.32

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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.