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Finding the Fourth Proportional to 653,150.80, 979,762.68 and 203,933.68

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Solution

The fourth proportional to 653,150.80, 979,762.68 and 203,933.68 is: 305,911.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,150.80 : 979,762.68 = 203,933.68 : x
  2. Step 2: Convert to fraction form
    653,150.80/979,762.68 = 203,933.68/x
  3. Step 3: Cross multiply
    653,150.80x = 979,762.68 × 203,933.68
  4. Step 4: Simplify right side
    653,150.80x = 199,806,608,859.06
  5. Step 5: Solve for x
    x = 199,806,608,859.06/653,150.80
  6. Step 6: Final answer
    x = 305,911.91

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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.