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Finding the Fourth Proportional to 653,780.14, 978,843.14 and 353,183.82

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Solution

The fourth proportional to 653,780.14, 978,843.14 and 353,183.82 is: 528,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,780.14 : 978,843.14 = 353,183.82 : x
  2. Step 2: Convert to fraction form
    653,780.14/978,843.14 = 353,183.82/x
  3. Step 3: Cross multiply
    653,780.14x = 978,843.14 × 353,183.82
  4. Step 4: Simplify right side
    653,780.14x = 345,711,559,366.00
  5. Step 5: Solve for x
    x = 345,711,559,366.00/653,780.14
  6. Step 6: Final answer
    x = 528,788.71

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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.