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Finding the Fourth Proportional to 627,792.93, 866,491.83 and 412,954.20

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Solution

The fourth proportional to 627,792.93, 866,491.83 and 412,954.20 is: 569,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,792.93 : 866,491.83 = 412,954.20 : x
  2. Step 2: Convert to fraction form
    627,792.93/866,491.83 = 412,954.20/x
  3. Step 3: Cross multiply
    627,792.93x = 866,491.83 × 412,954.20
  4. Step 4: Simplify right side
    627,792.93x = 357,821,440,464.19
  5. Step 5: Solve for x
    x = 357,821,440,464.19/627,792.93
  6. Step 6: Final answer
    x = 569,967.30

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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.