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Finding the Fourth Proportional to 536,428.60, 804,740.10 and 269,517.40

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Solution

The fourth proportional to 536,428.60, 804,740.10 and 269,517.40 is: 404,324.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,428.60 : 804,740.10 = 269,517.40 : x
  2. Step 2: Convert to fraction form
    536,428.60/804,740.10 = 269,517.40/x
  3. Step 3: Cross multiply
    536,428.60x = 804,740.10 × 269,517.40
  4. Step 4: Simplify right side
    536,428.60x = 216,891,459,427.74
  5. Step 5: Solve for x
    x = 216,891,459,427.74/536,428.60
  6. Step 6: Final answer
    x = 404,324.94

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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.