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Finding the Fourth Proportional to 262,527.40, 393,791.10 and 75,538.90

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Solution

The fourth proportional to 262,527.40, 393,791.10 and 75,538.90 is: 113,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,527.40 : 393,791.10 = 75,538.90 : x
  2. Step 2: Convert to fraction form
    262,527.40/393,791.10 = 75,538.90/x
  3. Step 3: Cross multiply
    262,527.40x = 393,791.10 × 75,538.90
  4. Step 4: Simplify right side
    262,527.40x = 29,746,546,523.79
  5. Step 5: Solve for x
    x = 29,746,546,523.79/262,527.40
  6. Step 6: Final answer
    x = 113,308.35

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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.