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Finding the Fourth Proportional to 627,952.22, 866,820.54 and 445,146.27

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Solution

The fourth proportional to 627,952.22, 866,820.54 and 445,146.27 is: 614,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,952.22 : 866,820.54 = 445,146.27 : x
  2. Step 2: Convert to fraction form
    627,952.22/866,820.54 = 445,146.27/x
  3. Step 3: Cross multiply
    627,952.22x = 866,820.54 × 445,146.27
  4. Step 4: Simplify right side
    627,952.22x = 385,861,928,559.11
  5. Step 5: Solve for x
    x = 385,861,928,559.11/627,952.22
  6. Step 6: Final answer
    x = 614,476.57

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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.