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Finding the Fourth Proportional to 539,165.60, 809,266.80 and 273,226.40

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Solution

The fourth proportional to 539,165.60, 809,266.80 and 273,226.40 is: 410,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,165.60 : 809,266.80 = 273,226.40 : x
  2. Step 2: Convert to fraction form
    539,165.60/809,266.80 = 273,226.40/x
  3. Step 3: Cross multiply
    539,165.60x = 809,266.80 × 273,226.40
  4. Step 4: Simplify right side
    539,165.60x = 221,113,054,403.52
  5. Step 5: Solve for x
    x = 221,113,054,403.52/539,165.60
  6. Step 6: Final answer
    x = 410,102.30

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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.