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Finding the Fourth Proportional to 3,948,923.51, 5,923,385.33 and 957,107.51

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Solution

The fourth proportional to 3,948,923.51, 5,923,385.33 and 957,107.51 is: 1,435,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,923.51 : 5,923,385.33 = 957,107.51 : x
  2. Step 2: Convert to fraction form
    3,948,923.51/5,923,385.33 = 957,107.51/x
  3. Step 3: Cross multiply
    3,948,923.51x = 5,923,385.33 × 957,107.51
  4. Step 4: Simplify right side
    3,948,923.51x = 5,669,316,549,564.36
  5. Step 5: Solve for x
    x = 5,669,316,549,564.36/3,948,923.51
  6. Step 6: Final answer
    x = 1,435,661.27

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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.