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Finding the Fourth Proportional to 627,868.84, 866,435.08 and 341,389.16

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Solution

The fourth proportional to 627,868.84, 866,435.08 and 341,389.16 is: 471,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,868.84 : 866,435.08 = 341,389.16 : x
  2. Step 2: Convert to fraction form
    627,868.84/866,435.08 = 341,389.16/x
  3. Step 3: Cross multiply
    627,868.84x = 866,435.08 × 341,389.16
  4. Step 4: Simplify right side
    627,868.84x = 295,791,544,155.73
  5. Step 5: Solve for x
    x = 295,791,544,155.73/627,868.84
  6. Step 6: Final answer
    x = 471,104.04

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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.