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Finding the Fourth Proportional to 320,016.84, 441,604.94 and 191,100.80

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Solution

The fourth proportional to 320,016.84, 441,604.94 and 191,100.80 is: 263,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,016.84 : 441,604.94 = 191,100.80 : x
  2. Step 2: Convert to fraction form
    320,016.84/441,604.94 = 191,100.80/x
  3. Step 3: Cross multiply
    320,016.84x = 441,604.94 × 191,100.80
  4. Step 4: Simplify right side
    320,016.84x = 84,391,054,154.42
  5. Step 5: Solve for x
    x = 84,391,054,154.42/320,016.84
  6. Step 6: Final answer
    x = 263,708.17

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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.