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Finding the Fourth Proportional to 627,761.88, 866,316.87 and 341,282.16

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Solution

The fourth proportional to 627,761.88, 866,316.87 and 341,282.16 is: 470,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,761.88 : 866,316.87 = 341,282.16 : x
  2. Step 2: Convert to fraction form
    627,761.88/866,316.87 = 341,282.16/x
  3. Step 3: Cross multiply
    627,761.88x = 866,316.87 × 341,282.16
  4. Step 4: Simplify right side
    627,761.88x = 295,658,492,638.04
  5. Step 5: Solve for x
    x = 295,658,492,638.04/627,761.88
  6. Step 6: Final answer
    x = 470,972.36

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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.