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Finding the Fourth Proportional to 724,361.40, 1,086,687.90 and 606,846.60

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Solution

The fourth proportional to 724,361.40, 1,086,687.90 and 606,846.60 is: 910,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,361.40 : 1,086,687.90 = 606,846.60 : x
  2. Step 2: Convert to fraction form
    724,361.40/1,086,687.90 = 606,846.60/x
  3. Step 3: Cross multiply
    724,361.40x = 1,086,687.90 × 606,846.60
  4. Step 4: Simplify right side
    724,361.40x = 659,452,857,376.14
  5. Step 5: Solve for x
    x = 659,452,857,376.14/724,361.40
  6. Step 6: Final answer
    x = 910,392.05

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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.