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Finding the Fourth Proportional to 356,270.10, 534,793.95 and 198,806.10

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Solution

The fourth proportional to 356,270.10, 534,793.95 and 198,806.10 is: 298,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,270.10 : 534,793.95 = 198,806.10 : x
  2. Step 2: Convert to fraction form
    356,270.10/534,793.95 = 198,806.10/x
  3. Step 3: Cross multiply
    356,270.10x = 534,793.95 × 198,806.10
  4. Step 4: Simplify right side
    356,270.10x = 106,320,299,503.10
  5. Step 5: Solve for x
    x = 106,320,299,503.10/356,270.10
  6. Step 6: Final answer
    x = 298,426.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.