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Finding the Fourth Proportional to 397,220.40, 595,312.20 and 183,963.60

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Solution

The fourth proportional to 397,220.40, 595,312.20 and 183,963.60 is: 275,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,220.40 : 595,312.20 = 183,963.60 : x
  2. Step 2: Convert to fraction form
    397,220.40/595,312.20 = 183,963.60/x
  3. Step 3: Cross multiply
    397,220.40x = 595,312.20 × 183,963.60
  4. Step 4: Simplify right side
    397,220.40x = 109,515,775,435.92
  5. Step 5: Solve for x
    x = 109,515,775,435.92/397,220.40
  6. Step 6: Final answer
    x = 275,705.31

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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.