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Finding the Fourth Proportional to 627,665.44, 866,180.28 and 341,186.44

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Solution

The fourth proportional to 627,665.44, 866,180.28 and 341,186.44 is: 470,838.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,665.44 : 866,180.28 = 341,186.44 : x
  2. Step 2: Convert to fraction form
    627,665.44/866,180.28 = 341,186.44/x
  3. Step 3: Cross multiply
    627,665.44x = 866,180.28 × 341,186.44
  4. Step 4: Simplify right side
    627,665.44x = 295,528,966,131.40
  5. Step 5: Solve for x
    x = 295,528,966,131.40/627,665.44
  6. Step 6: Final answer
    x = 470,838.36

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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.