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Finding the Fourth Proportional to 325,086.84, 448,706.70 and 305,260.92

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Solution

The fourth proportional to 325,086.84, 448,706.70 and 305,260.92 is: 421,341.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,086.84 : 448,706.70 = 305,260.92 : x
  2. Step 2: Convert to fraction form
    325,086.84/448,706.70 = 305,260.92/x
  3. Step 3: Cross multiply
    325,086.84x = 448,706.70 × 305,260.92
  4. Step 4: Simplify right side
    325,086.84x = 136,972,620,052.16
  5. Step 5: Solve for x
    x = 136,972,620,052.16/325,086.84
  6. Step 6: Final answer
    x = 421,341.63

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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.