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Finding the Fourth Proportional to 558,496.80, 770,703.48 and 303,842.52

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Solution

The fourth proportional to 558,496.80, 770,703.48 and 303,842.52 is: 419,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,496.80 : 770,703.48 = 303,842.52 : x
  2. Step 2: Convert to fraction form
    558,496.80/770,703.48 = 303,842.52/x
  3. Step 3: Cross multiply
    558,496.80x = 770,703.48 × 303,842.52
  4. Step 4: Simplify right side
    558,496.80x = 234,172,487,535.97
  5. Step 5: Solve for x
    x = 234,172,487,535.97/558,496.80
  6. Step 6: Final answer
    x = 419,290.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.