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Finding the Fourth Proportional to 662,977.05, 995,332.82 and 393,596.97

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Solution

The fourth proportional to 662,977.05, 995,332.82 and 393,596.97 is: 590,910.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,977.05 : 995,332.82 = 393,596.97 : x
  2. Step 2: Convert to fraction form
    662,977.05/995,332.82 = 393,596.97/x
  3. Step 3: Cross multiply
    662,977.05x = 995,332.82 × 393,596.97
  4. Step 4: Simplify right side
    662,977.05x = 391,759,982,093.56
  5. Step 5: Solve for x
    x = 391,759,982,093.56/662,977.05
  6. Step 6: Final answer
    x = 590,910.32

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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.