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Finding the Fourth Proportional to 364,705.11, 503,272.58 and 203,570.55

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Solution

The fourth proportional to 364,705.11, 503,272.58 and 203,570.55 is: 280,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,705.11 : 503,272.58 = 203,570.55 : x
  2. Step 2: Convert to fraction form
    364,705.11/503,272.58 = 203,570.55/x
  3. Step 3: Cross multiply
    364,705.11x = 503,272.58 × 203,570.55
  4. Step 4: Simplify right side
    364,705.11x = 102,451,475,910.52
  5. Step 5: Solve for x
    x = 102,451,475,910.52/364,705.11
  6. Step 6: Final answer
    x = 280,915.93

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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.