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Finding the Fourth Proportional to 262,101.20, 393,612.60 and 253,806.80

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Solution

The fourth proportional to 262,101.20, 393,612.60 and 253,806.80 is: 381,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,101.20 : 393,612.60 = 253,806.80 : x
  2. Step 2: Convert to fraction form
    262,101.20/393,612.60 = 253,806.80/x
  3. Step 3: Cross multiply
    262,101.20x = 393,612.60 × 253,806.80
  4. Step 4: Simplify right side
    262,101.20x = 99,901,554,445.68
  5. Step 5: Solve for x
    x = 99,901,554,445.68/262,101.20
  6. Step 6: Final answer
    x = 381,156.42

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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.