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Finding the Fourth Proportional to 3,948,798.81, 5,923,198.23 and 956,982.81

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Solution

The fourth proportional to 3,948,798.81, 5,923,198.23 and 956,982.81 is: 1,435,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,798.81 : 5,923,198.23 = 956,982.81 : x
  2. Step 2: Convert to fraction form
    3,948,798.81/5,923,198.23 = 956,982.81/x
  3. Step 3: Cross multiply
    3,948,798.81x = 5,923,198.23 × 956,982.81
  4. Step 4: Simplify right side
    3,948,798.81x = 5,668,398,886,332.43
  5. Step 5: Solve for x
    x = 5,668,398,886,332.43/3,948,798.81
  6. Step 6: Final answer
    x = 1,435,474.22

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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.