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Finding the Fourth Proportional to 273,897.20, 410,845.80 and 198,664.40

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Solution

The fourth proportional to 273,897.20, 410,845.80 and 198,664.40 is: 297,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,897.20 : 410,845.80 = 198,664.40 : x
  2. Step 2: Convert to fraction form
    273,897.20/410,845.80 = 198,664.40/x
  3. Step 3: Cross multiply
    273,897.20x = 410,845.80 × 198,664.40
  4. Step 4: Simplify right side
    273,897.20x = 81,620,434,349.52
  5. Step 5: Solve for x
    x = 81,620,434,349.52/273,897.20
  6. Step 6: Final answer
    x = 297,996.60

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1.5x scale

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.