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Finding the Fourth Proportional to 325,542.90, 487,623.15 and 270,246.90

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Solution

The fourth proportional to 325,542.90, 487,623.15 and 270,246.90 is: 404,796.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,542.90 : 487,623.15 = 270,246.90 : x
  2. Step 2: Convert to fraction form
    325,542.90/487,623.15 = 270,246.90/x
  3. Step 3: Cross multiply
    325,542.90x = 487,623.15 × 270,246.90
  4. Step 4: Simplify right side
    325,542.90x = 131,778,644,655.74
  5. Step 5: Solve for x
    x = 131,778,644,655.74/325,542.90
  6. Step 6: Final answer
    x = 404,796.56

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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.