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Finding the Fourth Proportional to 551,040.88, 825,772.70 and 313,893.54

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Solution

The fourth proportional to 551,040.88, 825,772.70 and 313,893.54 is: 470,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,040.88 : 825,772.70 = 313,893.54 : x
  2. Step 2: Convert to fraction form
    551,040.88/825,772.70 = 313,893.54/x
  3. Step 3: Cross multiply
    551,040.88x = 825,772.70 × 313,893.54
  4. Step 4: Simplify right side
    551,040.88x = 259,204,716,038.36
  5. Step 5: Solve for x
    x = 259,204,716,038.36/551,040.88
  6. Step 6: Final answer
    x = 470,391.08

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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.