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Finding the Fourth Proportional to 477,980.33, 717,121.19 and 225,250.61

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Solution

The fourth proportional to 477,980.33, 717,121.19 and 225,250.61 is: 337,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,980.33 : 717,121.19 = 225,250.61 : x
  2. Step 2: Convert to fraction form
    477,980.33/717,121.19 = 225,250.61/x
  3. Step 3: Cross multiply
    477,980.33x = 717,121.19 × 225,250.61
  4. Step 4: Simplify right side
    477,980.33x = 161,531,987,847.36
  5. Step 5: Solve for x
    x = 161,531,987,847.36/477,980.33
  6. Step 6: Final answer
    x = 337,946.93

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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.