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Finding the Fourth Proportional to 539,682.48, 809,928.72 and 203,055.12

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Solution

The fourth proportional to 539,682.48, 809,928.72 and 203,055.12 is: 304,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,682.48 : 809,928.72 = 203,055.12 : x
  2. Step 2: Convert to fraction form
    539,682.48/809,928.72 = 203,055.12/x
  3. Step 3: Cross multiply
    539,682.48x = 809,928.72 × 203,055.12
  4. Step 4: Simplify right side
    539,682.48x = 164,460,173,431.05
  5. Step 5: Solve for x
    x = 164,460,173,431.05/539,682.48
  6. Step 6: Final answer
    x = 304,735.06

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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.