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Finding the Fourth Proportional to 647,093.60, 970,640.40 and 591,106.40

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Solution

The fourth proportional to 647,093.60, 970,640.40 and 591,106.40 is: 886,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,093.60 : 970,640.40 = 591,106.40 : x
  2. Step 2: Convert to fraction form
    647,093.60/970,640.40 = 591,106.40/x
  3. Step 3: Cross multiply
    647,093.60x = 970,640.40 × 591,106.40
  4. Step 4: Simplify right side
    647,093.60x = 573,751,752,538.56
  5. Step 5: Solve for x
    x = 573,751,752,538.56/647,093.60
  6. Step 6: Final answer
    x = 886,659.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.