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Finding the Fourth Proportional to 503,791.20, 706,240.80 and 503,791.20

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Solution

The fourth proportional to 503,791.20, 706,240.80 and 503,791.20 is: 706,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,791.20 : 706,240.80 = 503,791.20 : x
  2. Step 2: Convert to fraction form
    503,791.20/706,240.80 = 503,791.20/x
  3. Step 3: Cross multiply
    503,791.20x = 706,240.80 × 503,791.20
  4. Step 4: Simplify right side
    503,791.20x = 355,797,900,120.96
  5. Step 5: Solve for x
    x = 355,797,900,120.96/503,791.20
  6. Step 6: Final answer
    x = 706,240.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.