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Finding the Fourth Proportional to 502,321.94, 693,192.60 and 272,874.05

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Solution

The fourth proportional to 502,321.94, 693,192.60 and 272,874.05 is: 376,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,321.94 : 693,192.60 = 272,874.05 : x
  2. Step 2: Convert to fraction form
    502,321.94/693,192.60 = 272,874.05/x
  3. Step 3: Cross multiply
    502,321.94x = 693,192.60 × 272,874.05
  4. Step 4: Simplify right side
    502,321.94x = 189,154,272,192.03
  5. Step 5: Solve for x
    x = 189,154,272,192.03/502,321.94
  6. Step 6: Final answer
    x = 376,559.85

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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.