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Finding the Fourth Proportional to 259,564.40, 389,346.60 and 176,620.40

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Solution

The fourth proportional to 259,564.40, 389,346.60 and 176,620.40 is: 264,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,564.40 : 389,346.60 = 176,620.40 : x
  2. Step 2: Convert to fraction form
    259,564.40/389,346.60 = 176,620.40/x
  3. Step 3: Cross multiply
    259,564.40x = 389,346.60 × 176,620.40
  4. Step 4: Simplify right side
    259,564.40x = 68,766,552,230.64
  5. Step 5: Solve for x
    x = 68,766,552,230.64/259,564.40
  6. Step 6: Final answer
    x = 264,930.60

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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.