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Finding the Fourth Proportional to 552,870.86, 763,197.20 and 371,687.88

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Solution

The fourth proportional to 552,870.86, 763,197.20 and 371,687.88 is: 513,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,870.86 : 763,197.20 = 371,687.88 : x
  2. Step 2: Convert to fraction form
    552,870.86/763,197.20 = 371,687.88/x
  3. Step 3: Cross multiply
    552,870.86x = 763,197.20 × 371,687.88
  4. Step 4: Simplify right side
    552,870.86x = 283,671,149,289.94
  5. Step 5: Solve for x
    x = 283,671,149,289.94/552,870.86
  6. Step 6: Final answer
    x = 513,087.54

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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.