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Finding the Fourth Proportional to 895,800, 1,236,204 and 493,392

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Solution

The fourth proportional to 895,800, 1,236,204 and 493,392 is: 680,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,800 : 1,236,204 = 493,392 : x
  2. Step 2: Convert to fraction form
    895,800/1,236,204 = 493,392/x
  3. Step 3: Cross multiply
    895,800x = 1,236,204 × 493,392
  4. Step 4: Simplify right side
    895,800x = 609,933,163,968
  5. Step 5: Solve for x
    x = 609,933,163,968/895,800
  6. Step 6: Final answer
    x = 680,880.96

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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.