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Finding the Fourth Proportional to 325,065.40, 487,403.70 and 167,601.40

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Solution

The fourth proportional to 325,065.40, 487,403.70 and 167,601.40 is: 251,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,065.40 : 487,403.70 = 167,601.40 : x
  2. Step 2: Convert to fraction form
    325,065.40/487,403.70 = 167,601.40/x
  3. Step 3: Cross multiply
    325,065.40x = 487,403.70 × 167,601.40
  4. Step 4: Simplify right side
    325,065.40x = 81,689,542,485.18
  5. Step 5: Solve for x
    x = 81,689,542,485.18/325,065.40
  6. Step 6: Final answer
    x = 251,301.87

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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.