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Finding the Fourth Proportional to 325,233.30, 487,849.95 and 272,745.30

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Solution

The fourth proportional to 325,233.30, 487,849.95 and 272,745.30 is: 409,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,233.30 : 487,849.95 = 272,745.30 : x
  2. Step 2: Convert to fraction form
    325,233.30/487,849.95 = 272,745.30/x
  3. Step 3: Cross multiply
    325,233.30x = 487,849.95 × 272,745.30
  4. Step 4: Simplify right side
    325,233.30x = 133,058,780,967.74
  5. Step 5: Solve for x
    x = 133,058,780,967.74/325,233.30
  6. Step 6: Final answer
    x = 409,117.95

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Similar ratio
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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.