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Finding the Fourth Proportional to 611,998.39, 844,540.99 and 340,059.30

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Solution

The fourth proportional to 611,998.39, 844,540.99 and 340,059.30 is: 469,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,998.39 : 844,540.99 = 340,059.30 : x
  2. Step 2: Convert to fraction form
    611,998.39/844,540.99 = 340,059.30/x
  3. Step 3: Cross multiply
    611,998.39x = 844,540.99 × 340,059.30
  4. Step 4: Simplify right side
    611,998.39x = 287,194,017,880.71
  5. Step 5: Solve for x
    x = 287,194,017,880.71/611,998.39
  6. Step 6: Final answer
    x = 469,272.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.