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Finding the Fourth Proportional to 313,491.68, 432,616.96 and 170,250.56

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Solution

The fourth proportional to 313,491.68, 432,616.96 and 170,250.56 is: 234,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,491.68 : 432,616.96 = 170,250.56 : x
  2. Step 2: Convert to fraction form
    313,491.68/432,616.96 = 170,250.56/x
  3. Step 3: Cross multiply
    313,491.68x = 432,616.96 × 170,250.56
  4. Step 4: Simplify right side
    313,491.68x = 73,653,279,705.50
  5. Step 5: Solve for x
    x = 73,653,279,705.50/313,491.68
  6. Step 6: Final answer
    x = 234,944.93

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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.