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Finding the Fourth Proportional to 627,611.78, 866,101.02 and 341,133.41

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Solution

The fourth proportional to 627,611.78, 866,101.02 and 341,133.41 is: 470,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,611.78 : 866,101.02 = 341,133.41 : x
  2. Step 2: Convert to fraction form
    627,611.78/866,101.02 = 341,133.41/x
  3. Step 3: Cross multiply
    627,611.78x = 866,101.02 × 341,133.41
  4. Step 4: Simplify right side
    627,611.78x = 295,455,994,357.08
  5. Step 5: Solve for x
    x = 295,455,994,357.08/627,611.78
  6. Step 6: Final answer
    x = 470,762.35

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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.