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Finding the Fourth Proportional to 627,611.63, 866,100.80 and 341,133.26

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Solution

The fourth proportional to 627,611.63, 866,100.80 and 341,133.26 is: 470,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,611.63 : 866,100.80 = 341,133.26 : x
  2. Step 2: Convert to fraction form
    627,611.63/866,100.80 = 341,133.26/x
  3. Step 3: Cross multiply
    627,611.63x = 866,100.80 × 341,133.26
  4. Step 4: Simplify right side
    627,611.63x = 295,455,785,914.94
  5. Step 5: Solve for x
    x = 295,455,785,914.94/627,611.63
  6. Step 6: Final answer
    x = 470,762.13

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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.