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Finding the Fourth Proportional to 325,495.50, 488,243.34 and 156,984.36

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Solution

The fourth proportional to 325,495.50, 488,243.34 and 156,984.36 is: 235,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,495.50 : 488,243.34 = 156,984.36 : x
  2. Step 2: Convert to fraction form
    325,495.50/488,243.34 = 156,984.36/x
  3. Step 3: Cross multiply
    325,495.50x = 488,243.34 × 156,984.36
  4. Step 4: Simplify right side
    325,495.50x = 76,646,568,254.16
  5. Step 5: Solve for x
    x = 76,646,568,254.16/325,495.50
  6. Step 6: Final answer
    x = 235,476.58

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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.