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Finding the Fourth Proportional to 521,711.65, 782,419.85 and 237,243.09

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Solution

The fourth proportional to 521,711.65, 782,419.85 and 237,243.09 is: 355,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,711.65 : 782,419.85 = 237,243.09 : x
  2. Step 2: Convert to fraction form
    521,711.65/782,419.85 = 237,243.09/x
  3. Step 3: Cross multiply
    521,711.65x = 782,419.85 × 237,243.09
  4. Step 4: Simplify right side
    521,711.65x = 185,623,706,863.35
  5. Step 5: Solve for x
    x = 185,623,706,863.35/521,711.65
  6. Step 6: Final answer
    x = 355,797.51

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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.