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Finding the Fourth Proportional to 492,396.10, 679,585.89 and 371,673.70

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Solution

The fourth proportional to 492,396.10, 679,585.89 and 371,673.70 is: 512,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,396.10 : 679,585.89 = 371,673.70 : x
  2. Step 2: Convert to fraction form
    492,396.10/679,585.89 = 371,673.70/x
  3. Step 3: Cross multiply
    492,396.10x = 679,585.89 × 371,673.70
  4. Step 4: Simplify right side
    492,396.10x = 252,584,202,204.09
  5. Step 5: Solve for x
    x = 252,584,202,204.09/492,396.10
  6. Step 6: Final answer
    x = 512,969.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.