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Finding the Fourth Proportional to 262,405.60, 393,640.35 and 93,943.60

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Solution

The fourth proportional to 262,405.60, 393,640.35 and 93,943.60 is: 140,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,405.60 : 393,640.35 = 93,943.60 : x
  2. Step 2: Convert to fraction form
    262,405.60/393,640.35 = 93,943.60/x
  3. Step 3: Cross multiply
    262,405.60x = 393,640.35 × 93,943.60
  4. Step 4: Simplify right side
    262,405.60x = 36,979,991,584.26
  5. Step 5: Solve for x
    x = 36,979,991,584.26/262,405.60
  6. Step 6: Final answer
    x = 140,926.84

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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.