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Finding the Fourth Proportional to 323,273.60, 484,910.56 and 86,610.24

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Solution

The fourth proportional to 323,273.60, 484,910.56 and 86,610.24 is: 129,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,273.60 : 484,910.56 = 86,610.24 : x
  2. Step 2: Convert to fraction form
    323,273.60/484,910.56 = 86,610.24/x
  3. Step 3: Cross multiply
    323,273.60x = 484,910.56 × 86,610.24
  4. Step 4: Simplify right side
    323,273.60x = 41,998,219,980.13
  5. Step 5: Solve for x
    x = 41,998,219,980.13/323,273.60
  6. Step 6: Final answer
    x = 129,915.40

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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.