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Finding the Fourth Proportional to 313,859.32, 433,116.73 and 177,905.77

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Solution

The fourth proportional to 313,859.32, 433,116.73 and 177,905.77 is: 245,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,859.32 : 433,116.73 = 177,905.77 : x
  2. Step 2: Convert to fraction form
    313,859.32/433,116.73 = 177,905.77/x
  3. Step 3: Cross multiply
    313,859.32x = 433,116.73 × 177,905.77
  4. Step 4: Simplify right side
    313,859.32x = 77,053,965,350.53
  5. Step 5: Solve for x
    x = 77,053,965,350.53/313,859.32
  6. Step 6: Final answer
    x = 245,504.79

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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.