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Finding the Fourth Proportional to 313,260.46, 432,299.82 and 170,020.48

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Solution

The fourth proportional to 313,260.46, 432,299.82 and 170,020.48 is: 234,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,260.46 : 432,299.82 = 170,020.48 : x
  2. Step 2: Convert to fraction form
    313,260.46/432,299.82 = 170,020.48/x
  3. Step 3: Cross multiply
    313,260.46x = 432,299.82 × 170,020.48
  4. Step 4: Simplify right side
    313,260.46x = 73,499,822,900.31
  5. Step 5: Solve for x
    x = 73,499,822,900.31/313,260.46
  6. Step 6: Final answer
    x = 234,628.47

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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.