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Finding the Fourth Proportional to 503,357.60, 694,648.09 and 273,929.69

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Solution

The fourth proportional to 503,357.60, 694,648.09 and 273,929.69 is: 378,030.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,357.60 : 694,648.09 = 273,929.69 : x
  2. Step 2: Convert to fraction form
    503,357.60/694,648.09 = 273,929.69/x
  3. Step 3: Cross multiply
    503,357.60x = 694,648.09 × 273,929.69
  4. Step 4: Simplify right side
    503,357.60x = 190,284,732,479.55
  5. Step 5: Solve for x
    x = 190,284,732,479.55/503,357.60
  6. Step 6: Final answer
    x = 378,030.92

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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.