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Finding the Fourth Proportional to 679,104, 937,192.68 and 377,298

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Solution

The fourth proportional to 679,104, 937,192.68 and 377,298 is: 520,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,104 : 937,192.68 = 377,298 : x
  2. Step 2: Convert to fraction form
    679,104/937,192.68 = 377,298/x
  3. Step 3: Cross multiply
    679,104x = 937,192.68 × 377,298
  4. Step 4: Simplify right side
    679,104x = 353,600,923,778.64
  5. Step 5: Solve for x
    x = 353,600,923,778.64/679,104
  6. Step 6: Final answer
    x = 520,687.44

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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.