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Finding the Fourth Proportional to 627,785.94, 866,361.57 and 341,325.78

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Solution

The fourth proportional to 627,785.94, 866,361.57 and 341,325.78 is: 471,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,785.94 : 866,361.57 = 341,325.78 : x
  2. Step 2: Convert to fraction form
    627,785.94/866,361.57 = 341,325.78/x
  3. Step 3: Cross multiply
    627,785.94x = 866,361.57 × 341,325.78
  4. Step 4: Simplify right side
    627,785.94x = 295,711,538,642.28
  5. Step 5: Solve for x
    x = 295,711,538,642.28/627,785.94
  6. Step 6: Final answer
    x = 471,038.80

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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.