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Finding the Fourth Proportional to 364,509.20, 503,037.26 and 203,378.33

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Solution

The fourth proportional to 364,509.20, 503,037.26 and 203,378.33 is: 280,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,509.20 : 503,037.26 = 203,378.33 : x
  2. Step 2: Convert to fraction form
    364,509.20/503,037.26 = 203,378.33/x
  3. Step 3: Cross multiply
    364,509.20x = 503,037.26 × 203,378.33
  4. Step 4: Simplify right side
    364,509.20x = 102,306,874,334.50
  5. Step 5: Solve for x
    x = 102,306,874,334.50/364,509.20
  6. Step 6: Final answer
    x = 280,670.22

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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.