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Finding the Fourth Proportional to 262,057.20, 393,085.80 and 242,811.60

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Solution

The fourth proportional to 262,057.20, 393,085.80 and 242,811.60 is: 364,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,057.20 : 393,085.80 = 242,811.60 : x
  2. Step 2: Convert to fraction form
    262,057.20/393,085.80 = 242,811.60/x
  3. Step 3: Cross multiply
    262,057.20x = 393,085.80 × 242,811.60
  4. Step 4: Simplify right side
    262,057.20x = 95,445,792,035.28
  5. Step 5: Solve for x
    x = 95,445,792,035.28/262,057.20
  6. Step 6: Final answer
    x = 364,217.40

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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.