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Finding the Fourth Proportional to 790,782, 1,183,197 and 554,585.52

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Solution

The fourth proportional to 790,782, 1,183,197 and 554,585.52 is: 829,791.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,782 : 1,183,197 = 554,585.52 : x
  2. Step 2: Convert to fraction form
    790,782/1,183,197 = 554,585.52/x
  3. Step 3: Cross multiply
    790,782x = 1,183,197 × 554,585.52
  4. Step 4: Simplify right side
    790,782x = 656,183,923,507.44
  5. Step 5: Solve for x
    x = 656,183,923,507.44/790,782
  6. Step 6: Final answer
    x = 829,791.17

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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.