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Finding the Fourth Proportional to 367,238.40, 550,987.20 and 354,278.40

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Solution

The fourth proportional to 367,238.40, 550,987.20 and 354,278.40 is: 531,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,238.40 : 550,987.20 = 354,278.40 : x
  2. Step 2: Convert to fraction form
    367,238.40/550,987.20 = 354,278.40/x
  3. Step 3: Cross multiply
    367,238.40x = 550,987.20 × 354,278.40
  4. Step 4: Simplify right side
    367,238.40x = 195,202,863,636.48
  5. Step 5: Solve for x
    x = 195,202,863,636.48/367,238.40
  6. Step 6: Final answer
    x = 531,542.63

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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.