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Finding the Fourth Proportional to 959,982.90, 1,439,974.35 and 945,986.10

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Solution

The fourth proportional to 959,982.90, 1,439,974.35 and 945,986.10 is: 1,418,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,982.90 : 1,439,974.35 = 945,986.10 : x
  2. Step 2: Convert to fraction form
    959,982.90/1,439,974.35 = 945,986.10/x
  3. Step 3: Cross multiply
    959,982.90x = 1,439,974.35 × 945,986.10
  4. Step 4: Simplify right side
    959,982.90x = 1,362,195,719,456.54
  5. Step 5: Solve for x
    x = 1,362,195,719,456.54/959,982.90
  6. Step 6: Final answer
    x = 1,418,979.15

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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.