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Finding the Fourth Proportional to 539,033.25, 807,751.11 and 218,795.45

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Solution

The fourth proportional to 539,033.25, 807,751.11 and 218,795.45 is: 327,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,033.25 : 807,751.11 = 218,795.45 : x
  2. Step 2: Convert to fraction form
    539,033.25/807,751.11 = 218,795.45/x
  3. Step 3: Cross multiply
    539,033.25x = 807,751.11 × 218,795.45
  4. Step 4: Simplify right side
    539,033.25x = 176,732,269,619.83
  5. Step 5: Solve for x
    x = 176,732,269,619.83/539,033.25
  6. Step 6: Final answer
    x = 327,868.96

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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.