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Finding the Fourth Proportional to 325,720.62, 488,460.84 and 112,434.25

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Solution

The fourth proportional to 325,720.62, 488,460.84 and 112,434.25 is: 168,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,720.62 : 488,460.84 = 112,434.25 : x
  2. Step 2: Convert to fraction form
    325,720.62/488,460.84 = 112,434.25/x
  3. Step 3: Cross multiply
    325,720.62x = 488,460.84 × 112,434.25
  4. Step 4: Simplify right side
    325,720.62x = 54,919,728,199.77
  5. Step 5: Solve for x
    x = 54,919,728,199.77/325,720.62
  6. Step 6: Final answer
    x = 168,609.92

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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.