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Finding the Fourth Proportional to 517,792.38, 775,638.81 and 267,949.50

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Solution

The fourth proportional to 517,792.38, 775,638.81 and 267,949.50 is: 401,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,792.38 : 775,638.81 = 267,949.50 : x
  2. Step 2: Convert to fraction form
    517,792.38/775,638.81 = 267,949.50/x
  3. Step 3: Cross multiply
    517,792.38x = 775,638.81 × 267,949.50
  4. Step 4: Simplify right side
    517,792.38x = 207,832,031,320.10
  5. Step 5: Solve for x
    x = 207,832,031,320.10/517,792.38
  6. Step 6: Final answer
    x = 401,381.02

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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.