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Finding the Fourth Proportional to 1,324,504.13, 1,983,287.54 and 867,658.16

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Solution

The fourth proportional to 1,324,504.13, 1,983,287.54 and 867,658.16 is: 1,299,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,504.13 : 1,983,287.54 = 867,658.16 : x
  2. Step 2: Convert to fraction form
    1,324,504.13/1,983,287.54 = 867,658.16/x
  3. Step 3: Cross multiply
    1,324,504.13x = 1,983,287.54 × 867,658.16
  4. Step 4: Simplify right side
    1,324,504.13x = 1,720,815,609,960.03
  5. Step 5: Solve for x
    x = 1,720,815,609,960.03/1,324,504.13
  6. Step 6: Final answer
    x = 1,299,214.99

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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.