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Finding the Fourth Proportional to 585,949.60, 878,809.20 and 191,965.60

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Solution

The fourth proportional to 585,949.60, 878,809.20 and 191,965.60 is: 287,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,949.60 : 878,809.20 = 191,965.60 : x
  2. Step 2: Convert to fraction form
    585,949.60/878,809.20 = 191,965.60/x
  3. Step 3: Cross multiply
    585,949.60x = 878,809.20 × 191,965.60
  4. Step 4: Simplify right side
    585,949.60x = 168,701,135,363.52
  5. Step 5: Solve for x
    x = 168,701,135,363.52/585,949.60
  6. Step 6: Final answer
    x = 287,910.66

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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.