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Finding the Fourth Proportional to 539,259.70, 809,062.35 and 361,966.90

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Solution

The fourth proportional to 539,259.70, 809,062.35 and 361,966.90 is: 543,066.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,259.70 : 809,062.35 = 361,966.90 : x
  2. Step 2: Convert to fraction form
    539,259.70/809,062.35 = 361,966.90/x
  3. Step 3: Cross multiply
    539,259.70x = 809,062.35 × 361,966.90
  4. Step 4: Simplify right side
    539,259.70x = 292,853,790,736.22
  5. Step 5: Solve for x
    x = 292,853,790,736.22/539,259.70
  6. Step 6: Final answer
    x = 543,066.34

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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.