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Finding the Fourth Proportional to 627,846.20, 866,423.40 and 341,366.40

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Solution

The fourth proportional to 627,846.20, 866,423.40 and 341,366.40 is: 471,083.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,846.20 : 866,423.40 = 341,366.40 : x
  2. Step 2: Convert to fraction form
    627,846.20/866,423.40 = 341,366.40/x
  3. Step 3: Cross multiply
    627,846.20x = 866,423.40 × 341,366.40
  4. Step 4: Simplify right side
    627,846.20x = 295,767,836,933.76
  5. Step 5: Solve for x
    x = 295,767,836,933.76/627,846.20
  6. Step 6: Final answer
    x = 471,083.26

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1.5x scale

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.