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Finding the Fourth Proportional to 627,738.15, 866,259.86 and 341,250.87

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Solution

The fourth proportional to 627,738.15, 866,259.86 and 341,250.87 is: 470,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,738.15 : 866,259.86 = 341,250.87 : x
  2. Step 2: Convert to fraction form
    627,738.15/866,259.86 = 341,250.87/x
  3. Step 3: Cross multiply
    627,738.15x = 866,259.86 × 341,250.87
  4. Step 4: Simplify right side
    627,738.15x = 295,611,929,164.82
  5. Step 5: Solve for x
    x = 295,611,929,164.82/627,738.15
  6. Step 6: Final answer
    x = 470,915.98

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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.