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Finding the Fourth Proportional to 262,969.80, 393,470.55 and 174,396.30

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Solution

The fourth proportional to 262,969.80, 393,470.55 and 174,396.30 is: 260,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,969.80 : 393,470.55 = 174,396.30 : x
  2. Step 2: Convert to fraction form
    262,969.80/393,470.55 = 174,396.30/x
  3. Step 3: Cross multiply
    262,969.80x = 393,470.55 × 174,396.30
  4. Step 4: Simplify right side
    262,969.80x = 68,619,808,078.97
  5. Step 5: Solve for x
    x = 68,619,808,078.97/262,969.80
  6. Step 6: Final answer
    x = 260,941.78

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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.