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Finding the Fourth Proportional to 435,711.80, 601,211.61 and 272,348.97

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Solution

The fourth proportional to 435,711.80, 601,211.61 and 272,348.97 is: 375,797.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,711.80 : 601,211.61 = 272,348.97 : x
  2. Step 2: Convert to fraction form
    435,711.80/601,211.61 = 272,348.97/x
  3. Step 3: Cross multiply
    435,711.80x = 601,211.61 × 272,348.97
  4. Step 4: Simplify right side
    435,711.80x = 163,739,362,735.54
  5. Step 5: Solve for x
    x = 163,739,362,735.54/435,711.80
  6. Step 6: Final answer
    x = 375,797.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.