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Finding the Fourth Proportional to 262,331.44, 393,518.80 and 84,866.96

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Solution

The fourth proportional to 262,331.44, 393,518.80 and 84,866.96 is: 127,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,331.44 : 393,518.80 = 84,866.96 : x
  2. Step 2: Convert to fraction form
    262,331.44/393,518.80 = 84,866.96/x
  3. Step 3: Cross multiply
    262,331.44x = 393,518.80 × 84,866.96
  4. Step 4: Simplify right side
    262,331.44x = 33,396,744,258.85
  5. Step 5: Solve for x
    x = 33,396,744,258.85/262,331.44
  6. Step 6: Final answer
    x = 127,307.44

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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.