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Finding the Fourth Proportional to 624,470.80, 936,706.20 and 225,124.60

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Solution

The fourth proportional to 624,470.80, 936,706.20 and 225,124.60 is: 337,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,470.80 : 936,706.20 = 225,124.60 : x
  2. Step 2: Convert to fraction form
    624,470.80/936,706.20 = 225,124.60/x
  3. Step 3: Cross multiply
    624,470.80x = 936,706.20 × 225,124.60
  4. Step 4: Simplify right side
    624,470.80x = 210,875,608,592.52
  5. Step 5: Solve for x
    x = 210,875,608,592.52/624,470.80
  6. Step 6: Final answer
    x = 337,686.90

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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.