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Finding the Fourth Proportional to 313,418.56, 432,517.62 and 179,282.56

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Solution

The fourth proportional to 313,418.56, 432,517.62 and 179,282.56 is: 247,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,418.56 : 432,517.62 = 179,282.56 : x
  2. Step 2: Convert to fraction form
    313,418.56/432,517.62 = 179,282.56/x
  3. Step 3: Cross multiply
    313,418.56x = 432,517.62 × 179,282.56
  4. Step 4: Simplify right side
    313,418.56x = 77,542,866,158.71
  5. Step 5: Solve for x
    x = 77,542,866,158.71/313,418.56
  6. Step 6: Final answer
    x = 247,409.94

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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.