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Finding the Fourth Proportional to 325,542.40, 487,622.40 and 270,246.40

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Solution

The fourth proportional to 325,542.40, 487,622.40 and 270,246.40 is: 404,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,542.40 : 487,622.40 = 270,246.40 : x
  2. Step 2: Convert to fraction form
    325,542.40/487,622.40 = 270,246.40/x
  3. Step 3: Cross multiply
    325,542.40x = 487,622.40 × 270,246.40
  4. Step 4: Simplify right side
    325,542.40x = 131,778,198,159.36
  5. Step 5: Solve for x
    x = 131,778,198,159.36/325,542.40
  6. Step 6: Final answer
    x = 404,795.81

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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.