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Finding the Fourth Proportional to 465,692.30, 697,954.11 and 199,139.38

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Solution

The fourth proportional to 465,692.30, 697,954.11 and 199,139.38 is: 298,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,692.30 : 697,954.11 = 199,139.38 : x
  2. Step 2: Convert to fraction form
    465,692.30/697,954.11 = 199,139.38/x
  3. Step 3: Cross multiply
    465,692.30x = 697,954.11 × 199,139.38
  4. Step 4: Simplify right side
    465,692.30x = 138,990,146,988.97
  5. Step 5: Solve for x
    x = 138,990,146,988.97/465,692.30
  6. Step 6: Final answer
    x = 298,459.19

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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.