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Finding the Fourth Proportional to 624,901.20, 936,790.47 and 225,448.08

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Solution

The fourth proportional to 624,901.20, 936,790.47 and 225,448.08 is: 337,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,901.20 : 936,790.47 = 225,448.08 : x
  2. Step 2: Convert to fraction form
    624,901.20/936,790.47 = 225,448.08/x
  3. Step 3: Cross multiply
    624,901.20x = 936,790.47 × 225,448.08
  4. Step 4: Simplify right side
    624,901.20x = 211,197,612,823.80
  5. Step 5: Solve for x
    x = 211,197,612,823.80/624,901.20
  6. Step 6: Final answer
    x = 337,969.61

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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.