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Finding the Fourth Proportional to 558,668.40, 770,969.56 and 304,026.48

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Solution

The fourth proportional to 558,668.40, 770,969.56 and 304,026.48 is: 419,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,668.40 : 770,969.56 = 304,026.48 : x
  2. Step 2: Convert to fraction form
    558,668.40/770,969.56 = 304,026.48/x
  3. Step 3: Cross multiply
    558,668.40x = 770,969.56 × 304,026.48
  4. Step 4: Simplify right side
    558,668.40x = 234,395,161,513.95
  5. Step 5: Solve for x
    x = 234,395,161,513.95/558,668.40
  6. Step 6: Final answer
    x = 419,560.44

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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.