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Finding the Fourth Proportional to 656,907.80, 984,195.30 and 614,917.40

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Solution

The fourth proportional to 656,907.80, 984,195.30 and 614,917.40 is: 921,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,907.80 : 984,195.30 = 614,917.40 : x
  2. Step 2: Convert to fraction form
    656,907.80/984,195.30 = 614,917.40/x
  3. Step 3: Cross multiply
    656,907.80x = 984,195.30 × 614,917.40
  4. Step 4: Simplify right side
    656,907.80x = 605,198,814,968.22
  5. Step 5: Solve for x
    x = 605,198,814,968.22/656,907.80
  6. Step 6: Final answer
    x = 921,284.26

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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.