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Finding the Fourth Proportional to 868,580.24, 1,198,580.24 and 481,391.87

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Solution

The fourth proportional to 868,580.24, 1,198,580.24 and 481,391.87 is: 664,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,580.24 : 1,198,580.24 = 481,391.87 : x
  2. Step 2: Convert to fraction form
    868,580.24/1,198,580.24 = 481,391.87/x
  3. Step 3: Cross multiply
    868,580.24x = 1,198,580.24 × 481,391.87
  4. Step 4: Simplify right side
    868,580.24x = 576,986,780,671.69
  5. Step 5: Solve for x
    x = 576,986,780,671.69/868,580.24
  6. Step 6: Final answer
    x = 664,287.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.