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Finding the Fourth Proportional to 574,350.80, 792,590.64 and 319,696.52

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Solution

The fourth proportional to 574,350.80, 792,590.64 and 319,696.52 is: 441,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,350.80 : 792,590.64 = 319,696.52 : x
  2. Step 2: Convert to fraction form
    574,350.80/792,590.64 = 319,696.52/x
  3. Step 3: Cross multiply
    574,350.80x = 792,590.64 × 319,696.52
  4. Step 4: Simplify right side
    574,350.80x = 253,388,469,392.57
  5. Step 5: Solve for x
    x = 253,388,469,392.57/574,350.80
  6. Step 6: Final answer
    x = 441,173.70

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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.