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Finding the Fourth Proportional to 539,353.81, 809,391.88 and 223,811.02

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Solution

The fourth proportional to 539,353.81, 809,391.88 and 223,811.02 is: 335,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,353.81 : 809,391.88 = 223,811.02 : x
  2. Step 2: Convert to fraction form
    539,353.81/809,391.88 = 223,811.02/x
  3. Step 3: Cross multiply
    539,353.81x = 809,391.88 × 223,811.02
  4. Step 4: Simplify right side
    539,353.81x = 181,150,817,636.03
  5. Step 5: Solve for x
    x = 181,150,817,636.03/539,353.81
  6. Step 6: Final answer
    x = 335,866.39

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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.