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Finding the Fourth Proportional to 504,859.80, 757,803.20 and 252,321.47

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Solution

The fourth proportional to 504,859.80, 757,803.20 and 252,321.47 is: 378,738.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,859.80 : 757,803.20 = 252,321.47 : x
  2. Step 2: Convert to fraction form
    504,859.80/757,803.20 = 252,321.47/x
  3. Step 3: Cross multiply
    504,859.80x = 757,803.20 × 252,321.47
  4. Step 4: Simplify right side
    504,859.80x = 191,210,017,394.70
  5. Step 5: Solve for x
    x = 191,210,017,394.70/504,859.80
  6. Step 6: Final answer
    x = 378,738.84

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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.