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Finding the Fourth Proportional to 536,414.81, 803,874.11 and 403,139.03

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Solution

The fourth proportional to 536,414.81, 803,874.11 and 403,139.03 is: 604,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,414.81 : 803,874.11 = 403,139.03 : x
  2. Step 2: Convert to fraction form
    536,414.81/803,874.11 = 403,139.03/x
  3. Step 3: Cross multiply
    536,414.81x = 803,874.11 × 403,139.03
  4. Step 4: Simplify right side
    536,414.81x = 324,073,022,912.45
  5. Step 5: Solve for x
    x = 324,073,022,912.45/536,414.81
  6. Step 6: Final answer
    x = 604,146.31

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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.