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Finding the Fourth Proportional to 481,394.51, 664,334.78 and 263,612.37

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Solution

The fourth proportional to 481,394.51, 664,334.78 and 263,612.37 is: 363,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,394.51 : 664,334.78 = 263,612.37 : x
  2. Step 2: Convert to fraction form
    481,394.51/664,334.78 = 263,612.37/x
  3. Step 3: Cross multiply
    481,394.51x = 664,334.78 × 263,612.37
  4. Step 4: Simplify right side
    481,394.51x = 175,126,864,511.17
  5. Step 5: Solve for x
    x = 175,126,864,511.17/481,394.51
  6. Step 6: Final answer
    x = 363,790.74

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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.