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Finding the Fourth Proportional to 512,881.80, 707,791.02 and 283,453.95

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Solution

The fourth proportional to 512,881.80, 707,791.02 and 283,453.95 is: 391,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,881.80 : 707,791.02 = 283,453.95 : x
  2. Step 2: Convert to fraction form
    512,881.80/707,791.02 = 283,453.95/x
  3. Step 3: Cross multiply
    512,881.80x = 707,791.02 × 283,453.95
  4. Step 4: Simplify right side
    512,881.80x = 200,626,160,393.53
  5. Step 5: Solve for x
    x = 200,626,160,393.53/512,881.80
  6. Step 6: Final answer
    x = 391,174.26

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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.